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Putz F, Haderlein M, Lettmaier S, Semrau S, Fietkau R, Huang Y. Exploring the Capabilities and Limitations of Large Language Models for Radiation Oncology Decision Support. Int J Radiat Oncol Biol Phys 2024; 118:900-904. [PMID: 38401978 DOI: 10.1016/j.ijrobp.2023.11.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/14/2023] [Accepted: 11/25/2023] [Indexed: 02/26/2024]
Affiliation(s)
- Florian Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Marlen Haderlein
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Yixing Huang
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany.
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2
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Tögel L, Schubart C, Lettmaier S, Neufert C, Hoyer J, Wolff K, Moskalev EA, Stöhr R, Agaimy A, Reis A, Wullich B, Mackensen A, Pavel M, Beckmann MW, Hartmann A, Fietkau R, Meidenbauer N, Haller F, Spoerl S. Determinants Affecting the Clinical Implementation of a Molecularly Informed Molecular Tumor Board Recommendation: Experience from a Tertiary Cancer Center. Cancers (Basel) 2023; 15:5892. [PMID: 38136436 PMCID: PMC10741918 DOI: 10.3390/cancers15245892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/08/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Molecular Tumor Boards (MTBs) converge state-of-the-art next-generation sequencing (NGS) methods with the expertise of an interdisciplinary team consisting of clinicians, pathologists, human geneticists, and molecular biologists to provide molecularly informed guidance in clinical decision making to the treating physician. In the present study, we particularly focused on elucidating the factors impacting on the clinical translation of MTB recommendations, utilizing data generated from gene panel mediated comprehensive genomic profiling (CGP) of 554 patients at the MTB of the Comprehensive Cancer Center Erlangen, Germany, during the years 2016 to 2020. A subgroup analysis of cases with available follow-up data (n = 332) revealed 139 cases with a molecularly informed MTB recommendation, which was successfully implemented in the clinic in 44 (31.7%) of these cases. Here, the molecularly matched treatment was applied in 45.4% (n = 20/44) of cases for ≥6 months and in 25% (n = 11/44) of cases for 12 months or longer (median time to treatment failure, TTF: 5 months, min: 1 month, max: 38 months, ongoing at data cut-off). In general, recommendations were preferentially implemented in the clinic when of high (i.e., tier 1) clinical evidence level. In particular, this was the case for MTB recommendations suggesting the application of PARP, PIK3CA, and IDH1/2 inhibitors. The main reason for non-compliance to the MTB recommendation was either the application of non-matched treatment modalities (n = 30)/stable disease (n = 7), or deteriorating patient condition (n = 22)/death of patient (n = 9). In summary, this study provides an insight into the factors affecting the clinical implementation of molecularly informed MTB recommendations, and careful considerations of these factors may guide future processes of clinical decision making.
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Affiliation(s)
- Lars Tögel
- Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany (E.A.M.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Bavarian Cancer Research Center (BZKF), 91054 Erlangen, Germany
| | - Christoph Schubart
- Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany (E.A.M.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Bavarian Cancer Research Center (BZKF), 91054 Erlangen, Germany
| | - Sebastian Lettmaier
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Clemens Neufert
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Department of Internal Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Juliane Hoyer
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Institute of Human Genetics, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Kerstin Wolff
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Department of Internal Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Evgeny A Moskalev
- Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany (E.A.M.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
| | - Robert Stöhr
- Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany (E.A.M.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
| | - Abbas Agaimy
- Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany (E.A.M.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
| | - André Reis
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Institute of Human Genetics, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Bernd Wullich
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Department of Urology and Pediatric Urology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Andreas Mackensen
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Bavarian Cancer Research Center (BZKF), 91054 Erlangen, Germany
- Department of Internal Medicine 5, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Marianne Pavel
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Department of Internal Medicine 1, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Matthias W. Beckmann
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Bavarian Cancer Research Center (BZKF), 91054 Erlangen, Germany
- Department of Obstetrics and Gynecology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Arndt Hartmann
- Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany (E.A.M.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Bavarian Cancer Research Center (BZKF), 91054 Erlangen, Germany
| | - Rainer Fietkau
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Norbert Meidenbauer
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Bavarian Cancer Research Center (BZKF), 91054 Erlangen, Germany
- Department of Internal Medicine 5, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Florian Haller
- Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany (E.A.M.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Bavarian Cancer Research Center (BZKF), 91054 Erlangen, Germany
| | - Silvia Spoerl
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany (K.W.); (S.S.)
- Bavarian Cancer Research Center (BZKF), 91054 Erlangen, Germany
- Department of Internal Medicine 5, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
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3
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Weissmann T, Rückert M, Putz F, Donaubauer AJ, Hecht M, Schnellhardt S, Schubert P, Roesch J, Höfler D, Ott OJ, Haderlein M, Lettmaier S, Fietkau R, Frey B, Gaipl US, Deloch L. Low-dose radiotherapy of osteoarthritis: from biological findings to clinical effects-challenges for future studies. Strahlenther Onkol 2023; 199:1164-1172. [PMID: 36602569 PMCID: PMC10674008 DOI: 10.1007/s00066-022-02038-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 11/25/2022] [Indexed: 01/06/2023]
Abstract
Osteoarthritis (OA) is one of the most common and socioeconomically relevant diseases, with rising incidence and prevalence especially with regard to an ageing population in the Western world. Over the decades, the scientific perception of OA has shifted from a simple degeneration of cartilage and bone to a multifactorial disease involving various cell types and immunomodulatory factors. Despite a wide range of conventional treatment modalities available, a significant proportion of patients remain treatment refractory. Low-dose radiotherapy (LDRT) has been used for decades in the treatment of patients with inflammatory and/or degenerative diseases and has proven a viable option even in cohorts of patients with a rather poor prognosis. While its justification mainly derives from a vast body of empirical evidence, prospective randomized trials have until now failed to prove the effectiveness of LDRT. Nevertheless, over the decades, adaptions of LDRT treatment modalities have evolved using lower dosages with establishment of different treatment schedules for which definitive clinical proof is still pending. Preclinical research has revealed that the immune system is modulated by LDRT and very recently osteoimmunological mechanisms have been described. Future studies and investigations further elucidating the underlying mechanisms are an essential key to clarify the optimal patient stratification and treatment procedure, considering the patients' inflammatory status, age, and sex. The present review aims not only to present clinical and preclinical knowledge about the mechanistic and beneficial effects of LDRT, but also to emphasize topics that will need to be addressed in future studies. Further, a concise overview of the current status of the underlying radiobiological knowledge of LDRT for clinicians is given, while seeking to stimulate further translational research.
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Affiliation(s)
- Thomas Weissmann
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Michael Rückert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Anna-Jasmina Donaubauer
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Markus Hecht
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Sören Schnellhardt
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Philipp Schubert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Johannes Roesch
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Daniel Höfler
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Oliver J Ott
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Marlen Haderlein
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Udo S Gaipl
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Lisa Deloch
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany.
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4
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Weissmann T, Mansoorian S, May MS, Lettmaier S, Höfler D, Deloch L, Speer S, Balk M, Frey B, Gaipl US, Bert C, Distel LV, Walter F, Belka C, Semrau S, Iro H, Fietkau R, Huang Y, Putz F. Deep Learning and Registration-Based Mapping for Analyzing the Distribution of Nodal Metastases in Head and Neck Cancer Cohorts: Informing Optimal Radiotherapy Target Volume Design. Cancers (Basel) 2023; 15:4620. [PMID: 37760588 PMCID: PMC10526893 DOI: 10.3390/cancers15184620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/15/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
We introduce a deep-learning- and a registration-based method for automatically analyzing the spatial distribution of nodal metastases (LNs) in head and neck (H/N) cancer cohorts to inform radiotherapy (RT) target volume design. The two methods are evaluated in a cohort of 193 H/N patients/planning CTs with a total of 449 LNs. In the deep learning method, a previously developed nnU-Net 3D/2D ensemble model is used to autosegment 20 H/N levels, with each LN subsequently being algorithmically assigned to the closest-level autosegmentation. In the nonrigid-registration-based mapping method, LNs are mapped into a calculated template CT representing the cohort-average patient anatomy, and kernel density estimation is employed to estimate the underlying average 3D-LN probability distribution allowing for analysis and visualization without prespecified level definitions. Multireader assessment by three radio-oncologists with majority voting was used to evaluate the deep learning method and obtain the ground-truth distribution. For the mapping technique, the proportion of LNs predicted by the 3D probability distribution for each level was calculated and compared to the deep learning and ground-truth distributions. As determined by a multireader review with majority voting, the deep learning method correctly categorized all 449 LNs to their respective levels. Level 2 showed the highest LN involvement (59.0%). The level involvement predicted by the mapping technique was consistent with the ground-truth distribution (p for difference 0.915). Application of the proposed methods to multicenter cohorts with selected H/N tumor subtypes for informing optimal RT target volume design is promising.
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Affiliation(s)
- Thomas Weissmann
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
- Bavarian Cancer Research Center (BZKF), 81377 Munich, Germany; (S.M.); (F.W.); (C.B.)
| | - Sina Mansoorian
- Bavarian Cancer Research Center (BZKF), 81377 Munich, Germany; (S.M.); (F.W.); (C.B.)
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, 81377 Munich, Germany
| | - Matthias Stefan May
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
- Department of Radiology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
| | - Daniel Höfler
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
| | - Lisa Deloch
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
- Translational Radiobiology, Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Stefan Speer
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
| | - Matthias Balk
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
- Department of Otolaryngology, Head and Neck Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
- Translational Radiobiology, Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Udo S. Gaipl
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
- Translational Radiobiology, Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Christoph Bert
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
| | - Luitpold Valentin Distel
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
| | - Franziska Walter
- Bavarian Cancer Research Center (BZKF), 81377 Munich, Germany; (S.M.); (F.W.); (C.B.)
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, 81377 Munich, Germany
| | - Claus Belka
- Bavarian Cancer Research Center (BZKF), 81377 Munich, Germany; (S.M.); (F.W.); (C.B.)
- Department of Radiation Oncology, University Hospital, Ludwig Maximilian University of Munich, 81377 Munich, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
| | - Heinrich Iro
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
- Department of Otolaryngology, Head and Neck Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
- Bavarian Cancer Research Center (BZKF), 81377 Munich, Germany; (S.M.); (F.W.); (C.B.)
| | - Yixing Huang
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
| | - Florian Putz
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054 Erlangen, Germany; (T.W.); (S.L.); (D.H.); (L.D.); (S.S.); (B.F.); (U.S.G.); (C.B.); (L.V.D.); (S.S.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.S.M.); (M.B.); (H.I.)
- Bavarian Cancer Research Center (BZKF), 81377 Munich, Germany; (S.M.); (F.W.); (C.B.)
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5
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Huang Y, Gomaa A, Semrau S, Haderlein M, Lettmaier S, Weissmann T, Grigo J, Tkhayat HB, Frey B, Gaipl U, Distel L, Maier A, Fietkau R, Bert C, Putz F. Benchmarking ChatGPT-4 on a radiation oncology in-training exam and Red Journal Gray Zone cases: potentials and challenges for ai-assisted medical education and decision making in radiation oncology. Front Oncol 2023; 13:1265024. [PMID: 37790756 PMCID: PMC10543650 DOI: 10.3389/fonc.2023.1265024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 08/23/2023] [Indexed: 10/05/2023] Open
Abstract
Purpose The potential of large language models in medicine for education and decision-making purposes has been demonstrated as they have achieved decent scores on medical exams such as the United States Medical Licensing Exam (USMLE) and the MedQA exam. This work aims to evaluate the performance of ChatGPT-4 in the specialized field of radiation oncology. Methods The 38th American College of Radiology (ACR) radiation oncology in-training (TXIT) exam and the 2022 Red Journal Gray Zone cases are used to benchmark the performance of ChatGPT-4. The TXIT exam contains 300 questions covering various topics of radiation oncology. The 2022 Gray Zone collection contains 15 complex clinical cases. Results For the TXIT exam, ChatGPT-3.5 and ChatGPT-4 have achieved the scores of 62.05% and 78.77%, respectively, highlighting the advantage of the latest ChatGPT-4 model. Based on the TXIT exam, ChatGPT-4's strong and weak areas in radiation oncology are identified to some extent. Specifically, ChatGPT-4 demonstrates better knowledge of statistics, CNS & eye, pediatrics, biology, and physics than knowledge of bone & soft tissue and gynecology, as per the ACR knowledge domain. Regarding clinical care paths, ChatGPT-4 performs better in diagnosis, prognosis, and toxicity than brachytherapy and dosimetry. It lacks proficiency in in-depth details of clinical trials. For the Gray Zone cases, ChatGPT-4 is able to suggest a personalized treatment approach to each case with high correctness and comprehensiveness. Importantly, it provides novel treatment aspects for many cases, which are not suggested by any human experts. Conclusion Both evaluations demonstrate the potential of ChatGPT-4 in medical education for the general public and cancer patients, as well as the potential to aid clinical decision-making, while acknowledging its limitations in certain domains. Owing to the risk of hallucinations, it is essential to verify the content generated by models such as ChatGPT for accuracy.
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Affiliation(s)
- Yixing Huang
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Ahmed Gomaa
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Marlen Haderlein
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Thomas Weissmann
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Johanna Grigo
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Hassen Ben Tkhayat
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Pattern Recognition Lab, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Udo Gaipl
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Luitpold Distel
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Andreas Maier
- Pattern Recognition Lab, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Christoph Bert
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
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6
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Deloch L, Rückert M, Weissmann T, Lettmaier S, Titova E, Wolff T, Weinrich F, Fietkau R, Gaipl US. The various functions and phenotypes of macrophages are also reflected in their responses to irradiation: A current overview. International Review of Cell and Molecular Biology 2023; 376:99-120. [PMID: 36997271 DOI: 10.1016/bs.ircmb.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Macrophages are a vital part of the innate immune system that are involved in healthy biological processes but also in disease modulation and response to therapy. Ionizing radiation is commonly used in the treatment of cancer and, in a lower dose range, as additive therapy for inflammatory diseases. In general, lower doses of ionizing radiation are known to induce rather anti-inflammatory responses, while higher doses are utilized in cancer treatment where they result, next to tumor control, in rather inflammatory responses. Most experiments that have been carried out in ex vivo on macrophages find this to be true, however in vivo, tumor-associated macrophages, for example, show a contradictory response to the respective dose-range. While some knowledge in radiation-induced modulations of macrophages has been collected, many of the underlying mechanisms remain unclear. Due to their pivotal role in the human body, however, they are a great target in therapy and could potentially aid in better treatment outcome. We therefore summarized the current knowledge of macrophage mediated radiation responses.
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7
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Weissmann T, Huang Y, Fischer S, Roesch J, Mansoorian S, Ayala Gaona H, Gostian AO, Hecht M, Lettmaier S, Deloch L, Frey B, Gaipl US, Distel LV, Maier A, Iro H, Semrau S, Bert C, Fietkau R, Putz F. Deep learning for automatic head and neck lymph node level delineation provides expert-level accuracy. Front Oncol 2023; 13:1115258. [PMID: 36874135 PMCID: PMC9978473 DOI: 10.3389/fonc.2023.1115258] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 01/30/2023] [Indexed: 02/18/2023] Open
Abstract
Background Deep learning-based head and neck lymph node level (HN_LNL) autodelineation is of high relevance to radiotherapy research and clinical treatment planning but still underinvestigated in academic literature. In particular, there is no publicly available open-source solution for large-scale autosegmentation of HN_LNL in the research setting. Methods An expert-delineated cohort of 35 planning CTs was used for training of an nnU-net 3D-fullres/2D-ensemble model for autosegmentation of 20 different HN_LNL. A second cohort acquired at the same institution later in time served as the test set (n = 20). In a completely blinded evaluation, 3 clinical experts rated the quality of deep learning autosegmentations in a head-to-head comparison with expert-created contours. For a subgroup of 10 cases, intraobserver variability was compared to the average deep learning autosegmentation accuracy on the original and recontoured set of expert segmentations. A postprocessing step to adjust craniocaudal boundaries of level autosegmentations to the CT slice plane was introduced and the effect of autocontour consistency with CT slice plane orientation on geometric accuracy and expert rating was investigated. Results Blinded expert ratings for deep learning segmentations and expert-created contours were not significantly different. Deep learning segmentations with slice plane adjustment were rated numerically higher (mean, 81.0 vs. 79.6, p = 0.185) and deep learning segmentations without slice plane adjustment were rated numerically lower (77.2 vs. 79.6, p = 0.167) than manually drawn contours. In a head-to-head comparison, deep learning segmentations with CT slice plane adjustment were rated significantly better than deep learning contours without slice plane adjustment (81.0 vs. 77.2, p = 0.004). Geometric accuracy of deep learning segmentations was not different from intraobserver variability (mean Dice per level, 0.76 vs. 0.77, p = 0.307). Clinical significance of contour consistency with CT slice plane orientation was not represented by geometric accuracy metrics (volumetric Dice, 0.78 vs. 0.78, p = 0.703). Conclusions We show that a nnU-net 3D-fullres/2D-ensemble model can be used for highly accurate autodelineation of HN_LNL using only a limited training dataset that is ideally suited for large-scale standardized autodelineation of HN_LNL in the research setting. Geometric accuracy metrics are only an imperfect surrogate for blinded expert rating.
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Affiliation(s)
- Thomas Weissmann
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Yixing Huang
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Stefan Fischer
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Johannes Roesch
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Sina Mansoorian
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Horacio Ayala Gaona
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Antoniu-Oreste Gostian
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany.,Department of Otolaryngology, Head and Neck Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Markus Hecht
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Lisa Deloch
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany.,Translational Radiobiology, Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany.,Translational Radiobiology, Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Udo S Gaipl
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany.,Translational Radiobiology, Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Luitpold Valentin Distel
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Andreas Maier
- Pattern Recognition Lab, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Heinrich Iro
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany.,Department of Otolaryngology, Head and Neck Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Christoph Bert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
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8
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Stoll E, Hader M, Rückert M, Weissmann T, Lettmaier S, Putz F, Hecht M, Fietkau R, Rosin A, Frey B, Gaipl US. Detailed in vitro analyses of the impact of multimodal cancer therapy with hyperthermia and radiotherapy on the immune phenotype of human glioblastoma cells. Int J Hyperthermia 2022; 39:796-805. [PMID: 35676615 DOI: 10.1080/02656736.2022.2080873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
PURPOSE Improvements of heat-delivery systems have led to hyperthermia (HT) being increasingly recognized as an adjunct treatment modality also for brain tumors. But how HT affects the immune phenotype of glioblastoma cells is only scarcely known. MATERIALS AND METHODS We therefore investigated the effect of in vitro HT, radiotherapy (RT), and the combination of both (RHT) on cell death modalities, immune checkpoint molecule (ICM) expression and release of the danger signal HSP70 of two human glioblastoma cell lines (U87 and U251) by using multicolor flow cytometry and ELISA. Hyperthermia was performed once or twice for 60-minute sessions reaching temperatures of 39 °C, 41 °C, and 44 °C, respectively. RT was administered with 5 x 2 Gy. RESULTS A hyperthermia chamber for cell culture t-flasks regulating the temperature via a contact sensor was developed. While the glioblastoma cells were rather radioresistant, particularly in U251 cells, the combination of RT with HT significantly increased the percentage of apoptotic and necrotic cells for all temperatures examined and for both, single and double HT application. In line with that, an increased release of HSP 70 was seen only in U251 cells, mainly following treatment with HT at temperatures of 44 °C alone or in combination with RT. In contrast, immune suppressive (PD-L1, PD-L2, HVEM) and immune stimulatory (ICOS-L, CD137-L and Ox40-L) ICMs were significantly increased mostly on U87 cells, and particularly after RHT with 41 °C. CONCLUSIONS Individual assessment of the glioblastoma immune cell phenotype with regard to the planned treatment is mandatory to optimize multimodal radio-immunotherapy protocols including HT.
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Affiliation(s)
- Eileen Stoll
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Michael Hader
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Michael Rückert
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Thomas Weissmann
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Markus Hecht
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Andreas Rosin
- Chair for Ceramic Materials Engineering, Keylab Glastechnology, University of Bayreuth, Bayreuth, Germany
| | - Benjamin Frey
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
| | - Udo S Gaipl
- Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), Erlangen, Germany
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9
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Schmied M, Lettmaier S, Semrau S, Traxdorf M, Mantsopoulos K, Mueller SK, Iro H, Denz A, Grützmann R, Fietkau R, Haderlein M. Radio(chemo)therapy in anaplastic thyroid cancer-high locoregional but low distant control rates-a monocentric analysis of a tertiary referral center. Strahlenther Onkol 2022; 198:994-1001. [PMID: 35522270 PMCID: PMC9581821 DOI: 10.1007/s00066-022-01943-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 04/03/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Anaplastic thyroid cancer (ATC) is a lethal disease with highly aggressive disease progression. This study analyses the influence of radio(chemo)therapy, R(C)T, on disease control, survival rates and predictors for survival. PATIENTS AND METHODS A total of 33 patients with ATC, treated at a tertiary referral center between May 2001 and April 2020 were included. Univariate and multivariate analysis were used to investigate correlates of R(C)T and predictors on disease control and survival rates. RESULTS Median follow-up was 4 months. In UICC stage IVA and IVB median overall survival (OS) was 8 months, median progression-free survival (PFS) was 6 months. Patients with UICC stage IVA and IVB and patients being irradiated with a radiation dose of more than 60 Gy showed increased OS. Of these patients, 3 were alive and free from disease. All of them receiving cisplatin-based radiochemotherapy and a minimum radiation dose of 66 Gy. UICC stage IVC showed a median OS of 2.5 months and a median PFS of 1 month. Only 2 of 16 patients had local failure. CONCLUSION Depending on UICC stage, RT with high radiation dose can lead to improved OS or at least higher locoregional control. A limiting factor is the high incidence of distant metastases; therefore modern systemic treatment options should be integrated into multimodal therapy concepts.
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Affiliation(s)
- Matthias Schmied
- Department of Radiation Oncology, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Universitätsstr. 27, 91054, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Universitätsstr. 27, 91054, Erlangen, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Universitätsstr. 27, 91054, Erlangen, Germany
| | - Maximilian Traxdorf
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Waldstrasse 1, 91054, Erlangen, Germany
| | - Konstantinos Mantsopoulos
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Waldstrasse 1, 91054, Erlangen, Germany
| | - Sarina K Mueller
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Waldstrasse 1, 91054, Erlangen, Germany
| | - Heinrich Iro
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Waldstrasse 1, 91054, Erlangen, Germany
| | - Axel Denz
- Department of Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Krankenhausstrasse 12, 91054, Erlangen, Germany
| | - Robert Grützmann
- Department of Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Krankenhausstrasse 12, 91054, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Universitätsstr. 27, 91054, Erlangen, Germany
| | - Marlen Haderlein
- Department of Radiation Oncology, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Universitätsstr. 27, 91054, Erlangen, Germany.
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10
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Maksoud Z, Schmidt MA, Huang Y, Rutzner S, Mansoorian S, Weissmann T, Bert C, Distel L, Semrau S, Lettmaier S, Eyüpoglu I, Fietkau R, Putz F. Transient Enlargement in Meningiomas Treated with Stereotactic Radiotherapy. Cancers (Basel) 2022; 14:cancers14061547. [PMID: 35326697 PMCID: PMC8946188 DOI: 10.3390/cancers14061547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Accurate assessment of treatment efficacy is a prerequisite for the improvement in therapeutic outcomes in clinical trials. However, it is very challenging to accurately track the size of meningiomas after radiotherapy, because of their complex shapes and often slow growth. Measuring the whole tumor volume as opposed to simple diameter measurements to assess treatment efficacy, therefore, is very promising but little is known on expected volumetric changes of meningiomas following radiotherapy. Therefore, in this study, we meticulously investigated volumetric changes in meningiomas following radiotherapy incorporating volumetric measurements from 468 MRI studies and evaluated newly proposed RANO volumetric criteria in the context of radiotherapy. We found that temporary tumor enlargement after radiotherapy overall was rare but occurred significantly more frequently after high than after low single doses of radiation, represented an important differential diagnosis to tumor progression and would have skewed results in a clinical trial if not accounted for. Abstract To investigate the occurrence of pseudoprogression/transient enlargement in meningiomas after stereotactic radiotherapy (RT) and to evaluate recently proposed volumetric RANO meningioma criteria for response assessment in the context of RT. Sixty-nine meningiomas (benign: 90%, atypical: 10%) received stereotactic RT from January 2005–May 2018. A total of 468 MRI studies were segmented longitudinally during a median follow-up of 42.3 months. Best response and local control were evaluated according to recently proposed volumetric RANO criteria. Transient enlargement was defined as volumetric increase ≥20% followed by a subsequent regression ≥20%. The mean best volumetric response was −23% change from baseline (range, −86% to +19%). According to RANO, the best volumetric response was SD in 81% (56/69), MR in 13% (9/69) and PR in 6% (4/69). Transient enlargement occurred in only 6% (4/69) post RT but would have represented 60% (3/5) of cases with progressive disease if not accounted for. Transient enlargement was characterized by a mean maximum volumetric increase of +181% (range, +24% to +389 %) with all cases occurring in the first year post-RT (range, 4.1–10.3 months). Transient enlargement was significantly more frequent with SRS or hypofractionation than with conventional fractionation (25% vs. 2%, p = 0.015). Five-year volumetric control was 97.8% if transient enlargement was recognized but 92.9% if not accounted for. Transient enlargement/pseudoprogression in the first year following SRS and hypofractionated RT represents an important differential diagnosis, especially because of the high volumetric control achieved with stereotactic RT. Meningioma enlargement during subsequent post-RT follow-up and after conventional fractionation should raise suspicion for tumor progression.
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Affiliation(s)
- Ziad Maksoud
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
| | - Manuel Alexander Schmidt
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
- Department of Neuroradiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
| | - Yixing Huang
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
| | - Sandra Rutzner
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
| | - Sina Mansoorian
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
| | - Thomas Weissmann
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
| | - Christoph Bert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
| | - Luitpold Distel
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
| | - Sabine Semrau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
| | - Ilker Eyüpoglu
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
- Department of Neurosurgery, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
| | - Florian Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054 Erlangen, Germany; (Z.M.); (Y.H.); (S.R.); (S.M.); (T.W.); (C.B.); (L.D.); (S.S.); (S.L.); (R.F.)
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany; (M.A.S.); (I.E.)
- Correspondence: ; Tel.: +49-9131-853-4080
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11
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Weissmann T, Rückert M, Zhou JG, Seeling M, Lettmaier S, Donaubauer AJ, Nimmerjahn F, Ott OJ, Hecht M, Putz F, Fietkau R, Frey B, Gaipl US, Deloch L. Low-Dose Radiotherapy Leads to a Systemic Anti-Inflammatory Shift in the Pre-Clinical K/BxN Serum Transfer Model and Reduces Osteoarthritic Pain in Patients. Front Immunol 2022; 12:777792. [PMID: 35046940 PMCID: PMC8763318 DOI: 10.3389/fimmu.2021.777792] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/07/2021] [Indexed: 11/28/2022] Open
Abstract
Osteoarthritis (OA) is the leading degenerative joint disease in the western world and leads, if left untreated, to a progressive deterioration of joint functionality, ultimately reducing quality of life. Recent data has shown, that especially OA of the ankle and foot are among the most frequently affected regions. Current research in OA points towards a complex involvement of various cell and tissue types, often accompanied by inflammation. Low-dose radiotherapy (LDRT) is widely used for the treatment of degenerative and inflammatory diseases. While the reported analgesic effects are well known, the underlying molecular mechanisms are only poorly understood. We therefore correlated a clinical approach, looking at pain reduction in 196 patients treated with LDRT with a pre-clinical approach, utilizing the K/BxN serum transfer mouse model using flow cytometry and multiplex ELISA for analysis. While an improvement of symptoms in the majority of patients was found, patients suffering from symptoms within the tarsi transversa show a significantly lower level of improvement. Further, a significant impact of therapy success was detected depending on whether only one or both feet were affected. Further, patients of younger age showed a significantly better outcome than older ones while needing fewer treatment series. When looking on a cellular level within the mouse model, a systemic alteration of immune cells namely a shift from CD8+ to CD4+ T cells and reduced numbers of DCs was observed. A general reduction of inflammatory cytokines was detected, with significant alterations in IL-4 and IL-17 levels, all of which could potentially be responsible for the highly effective clinical improvement in patients. Taken together our data indicate that LDRT can be regarded as a highly effective treatment option for patients suffering from OA of the foot and ankle, in terms of analgesic effects, especially in younger patients. Furthermore, the observed effects are mediated by an interplay of cellular and soluble immune factors, as observed in the K/BxN serum transfer model. With this interdisciplinary approach we aim to encourage the usage of LDRT as an additive treatment strategy not only as a last resort, but also earlier in the course of disease.
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Affiliation(s)
- Thomas Weissmann
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Michael Rückert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Jian-Guo Zhou
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Department of Oncology, The second affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Michaela Seeling
- Department of Biology, Institute of Genetics, Friedrich-Alexander-Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Anna-Jasmina Donaubauer
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Falk Nimmerjahn
- Department of Biology, Institute of Genetics, Friedrich-Alexander-Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Oliver J Ott
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Markus Hecht
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Udo S Gaipl
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Lisa Deloch
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Translational Radiobiology, Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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12
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Mueller SK, Haderlein M, Lettmaier S, Agaimy A, Haller F, Hecht M, Fietkau R, Iro H, Mantsopoulos K. Targeted Therapy, Chemotherapy, Immunotherapy and Novel Treatment Options for Different Subtypes of Salivary Gland Cancer. J Clin Med 2022; 11:jcm11030720. [PMID: 35160172 PMCID: PMC8836387 DOI: 10.3390/jcm11030720] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/19/2022] [Accepted: 01/26/2022] [Indexed: 12/04/2022] Open
Abstract
Surgical resection remains the first line treatment for salivary gland cancer (SGC). In the case of locally advanced disease, surgery is followed by adjuvant radiotherapy. Surgical resection should be favored in resectable locoregional recurrent disease as well, and even the complete resection of all distant oligometastases has clinical benefit for the patients. For inoperable and disseminated metastatic disease, a multitude of systemic therapies including chemotherapy, targeted therapy, and immunotherapy are available. In this review, the current therapeutic options for inoperable recurrent or metastatic SGCs are summarized. Systemic treatment can achieve prolonged progression-free and overall survival, while the overall prognosis remains poor. Current clinical trials include only a limited number of patients and mostly combine different histologic subtypes. Additionally, no randomized controlled trial comparing different therapeutic options has been performed. In the future, further studies with a larger patient cohort and ideally only one histologic subtype are needed in order to improve the outcome for SGC patients. However, this may be difficult to accomplish due to the rarity and diversity of the disease. Additionally, molecular analyses need to be performed routinely in order to individualize treatment and to go one step further towards precision medicine.
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Affiliation(s)
- Sarina K. Mueller
- Department of Otolaryngology, Head and Neck Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (H.I.); (K.M.)
- Working Group Salivary Glands and Thyroid Glands, Germany Otolaryngologic Society, Head and Neck Surgery, 53113 Bonn, Germany
- Comprehensive Cancer Center, Interdisciplinary Oncologic Clinic, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (M.H.); (S.L.); (M.H.); (R.F.)
- Correspondence:
| | - Marlen Haderlein
- Comprehensive Cancer Center, Interdisciplinary Oncologic Clinic, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (M.H.); (S.L.); (M.H.); (R.F.)
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Sebastian Lettmaier
- Comprehensive Cancer Center, Interdisciplinary Oncologic Clinic, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (M.H.); (S.L.); (M.H.); (R.F.)
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Abbas Agaimy
- Department of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (A.A.); (F.H.)
| | - Florian Haller
- Department of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (A.A.); (F.H.)
| | - Markus Hecht
- Comprehensive Cancer Center, Interdisciplinary Oncologic Clinic, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (M.H.); (S.L.); (M.H.); (R.F.)
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Rainer Fietkau
- Comprehensive Cancer Center, Interdisciplinary Oncologic Clinic, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (M.H.); (S.L.); (M.H.); (R.F.)
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
| | - Heinrich Iro
- Department of Otolaryngology, Head and Neck Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (H.I.); (K.M.)
- Working Group Salivary Glands and Thyroid Glands, Germany Otolaryngologic Society, Head and Neck Surgery, 53113 Bonn, Germany
- Comprehensive Cancer Center, Interdisciplinary Oncologic Clinic, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (M.H.); (S.L.); (M.H.); (R.F.)
| | - Konstantinos Mantsopoulos
- Department of Otolaryngology, Head and Neck Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (H.I.); (K.M.)
- Working Group Salivary Glands and Thyroid Glands, Germany Otolaryngologic Society, Head and Neck Surgery, 53113 Bonn, Germany
- Comprehensive Cancer Center, Interdisciplinary Oncologic Clinic, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (M.H.); (S.L.); (M.H.); (R.F.)
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13
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Müller S, Haderlein M, Traxdorf M, Semrau S, Agaimy A, Lettmaier S, Gostian AO, Schubart C, Mantsopoulos K, Schmidt D, Wiesmueller M, Sievert M, Beck M, Eckstein M, Fietkau R, Iro H, Hecht M. [Therapies for synchronous malignomas - the importance of interdisciplinary oncology]. Laryngorhinootologie 2021; 101:327-330. [PMID: 34298563 DOI: 10.1055/a-1540-7017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Affiliation(s)
- Sarina Müller
- Hals-Nasen-Ohrenklinik, Kopf- und Halschirurgie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Marlen Haderlein
- Strahlenklinik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Maximilian Traxdorf
- Hals-Nasen-Ohrenklinik, Kopf- und Halschirurgie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Sabine Semrau
- Strahlenklinik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Abbas Agaimy
- Pathologisches Institut, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Sebastian Lettmaier
- Strahlenklinik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Antoniu-Oreste Gostian
- Hals-Nasen-Ohrenklinik, Kopf- und Halschirurgie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Christoph Schubart
- Pathologisches Institut, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Konstantinos Mantsopoulos
- Hals-Nasen-Ohrenklinik, Kopf- und Halschirurgie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Daniela Schmidt
- Klinik für Nuklearmedizin, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Marco Wiesmueller
- Radiologisches Institut, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Matti Sievert
- Hals-Nasen-Ohrenklinik, Kopf- und Halschirurgie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Michael Beck
- Klinik für Nuklearmedizin, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Markus Eckstein
- Radiologisches Institut, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Rainer Fietkau
- Strahlenklinik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Heinrich Iro
- Hals-Nasen-Ohrenklinik, Kopf- und Halschirurgie, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
| | - Markus Hecht
- Strahlenklinik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Deutschland
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Weissmann T, Höfler D, Hecht M, Semrau S, Haderlein M, Filimonova I, Frey B, Bert C, Lettmaier S, Mantsopoulos K, Iro H, Fietkau R, Putz F. Oligometastatic head and neck cancer: Which patients benefit from radical local treatment of all tumour sites? Radiat Oncol 2021; 16:62. [PMID: 33789725 PMCID: PMC8011153 DOI: 10.1186/s13014-021-01790-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 03/17/2021] [Indexed: 02/07/2023] Open
Abstract
Background There is a large lack of evidence for optimal treatment in oligometastatic head and neck cancer and it is especially unclear which patients benefit from radical local treatment of all tumour sites. Methods 40 patients with newly diagnosed oligometastatic head and neck cancer received radical local treatment of all tumour sites from 14.02.2008 to 24.08.2018. Primary endpoint was overall survival. Time to occurrence of new distant metastases and local control were evaluated as secondary endpoints as well as prognostic factors in univariate und multivariate Cox’s regression analysis. To investigate the impact of total tumour volume on survival, all tumour sites were segmented on baseline imaging. Results Radical local treatment included radiotherapy in 90% of patients, surgery in 25% and radiofrequency ablation in 3%. Median overall survival from first diagnosis of oligometastatic disease was 23.0 months, 2-year survival was 48%, 3-year survival was 37%, 4-year survival was 24% and 5-year survival was 16%. Median time to occurrence of new distant metastases was 11.6 months with freedom from new metastases showing a tail pattern after 3 years of follow-up (22% at 3, 4- and 5-years post-treatment). In multivariate analysis, better ECOG status, absence of bone and brain metastases and lower total tumour volume were significantly associated with improved survival, whereas the number of metastases and involved organ sites was not. Conclusions Radical local treatment in oligometastatic head and neck cancer shows promising outcomes and needs to be further pursued. Patients with good performance status, absence of brain and bone metastases and low total tumour volume were identified as optimal candidates for radical local treatment in oligometastatic head and neck cancer and should be considered for selection in future prospective trials. Supplementary Information The online version contains supplementary material available at 10.1186/s13014-021-01790-w.
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Affiliation(s)
- Thomas Weissmann
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Daniel Höfler
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Markus Hecht
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Sabine Semrau
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Marlen Haderlein
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Irina Filimonova
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Christoph Bert
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Konstantinos Mantsopoulos
- Department of Otolaryngology, Head and Neck Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Heinrich Iro
- Department of Otolaryngology, Head and Neck Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Florian Putz
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany.
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15
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Filimonova I, Schmidt D, Mansoorian S, Weissmann T, Siavooshhaghighi H, Cavallaro A, Kuwert T, Bert C, Frey B, Distel LV, Lettmaier S, Fietkau R, Putz F. The Distribution of Pelvic Nodal Metastases in Prostate Cancer Reveals Potential to Advance and Personalize Pelvic Radiotherapy. Front Oncol 2021; 10:590722. [PMID: 33489887 PMCID: PMC7820617 DOI: 10.3389/fonc.2020.590722] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 11/16/2020] [Indexed: 12/01/2022] Open
Abstract
Background Traditional clinical target volume (CTV) definition for pelvic radiotherapy in prostate cancer consists of large volumes being treated with homogeneous doses without fully utilizing information on the probability of microscopic involvement to guide target volume design and prescription dose distribution. Methods We analyzed patterns of nodal involvement in 75 patients that received RT for pelvic and paraaortic lymph node metastases (LNs) from prostate cancer in regard to the new NRG-CTV recommendation. Non-rigid registration-based LN mapping and weighted three-dimensional kernel density estimation were used to visualize the average probability distribution for nodal metastases. As independent approach, the mean relative proportion of LNs observed for each level was determined manually and NRG and non-NRG levels were evaluated for frequency of involvement. Computer-automated distance measurements were used to compare LN distances in individual patients to the spatial proximity of nodal metastases at a cohort level. Results 34.7% of patients had pelvic LNs outside NRG-consensus, of which perirectal was most common (25.3% of all patients) followed by left common iliac nodes near the left psoas major (6.7%). A substantial portion of patients (13.3%) had nodes at the posterior edge of the NRG obturator level. Observer-independent mapping consistently visualized high-probability hotspots outside NRG-consensus in the perirectal and left common iliac regions. Affected nodes in individual patients occurred in highly significantly closer proximity than at cohort-level (mean distance, 6.6 cm vs. 8.7 cm, p < 0.001). Conclusions Based on this analysis, the common iliac level should extend to the left psoas major and obturator levels should extend posteriorly 5 mm beyond the obturator internus. Incomplete coverage by the NRG-consensus was mostly because of perirectal involvement. We introduce three-dimensional kernel density estimation after non-rigid registration-based mapping for the analysis of recurrence data in radiotherapy. This technique provides an estimate of the underlying probability distribution of nodal involvement and may help in addressing institution- or subgroup-specific differences. Nodal metastases in individual patients occurred in highly significantly closer proximity than at a cohort-level, which supports that personalized target volumes could be reduced in size compared to a “one-size-fits-all” approach and is an important basis for further investigation into individualized field designs.
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Affiliation(s)
- Irina Filimonova
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Daniela Schmidt
- Department of Nuclear Medicine, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Sina Mansoorian
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Thomas Weissmann
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Hadi Siavooshhaghighi
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Alexander Cavallaro
- Institute of Radiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Torsten Kuwert
- Department of Nuclear Medicine, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christoph Bert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Luitpold Valentin Distel
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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16
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Oft D, Schmidt MA, Weissmann T, Roesch J, Mengling V, Masitho S, Bert C, Lettmaier S, Frey B, Distel LV, Fietkau R, Putz F. Volumetric Regression in Brain Metastases After Stereotactic Radiotherapy: Time Course, Predictors, and Significance. Front Oncol 2021; 10:590980. [PMID: 33489888 PMCID: PMC7820888 DOI: 10.3389/fonc.2020.590980] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 11/26/2020] [Indexed: 11/13/2022] Open
Abstract
Background There is insufficient understanding of the natural course of volumetric regression in brain metastases after stereotactic radiotherapy (SRT) and optimal volumetric criteria for the assessment of response and progression in radiotherapy clinical trials for brain metastases are currently unknown. Methods Volumetric analysis via whole-tumor segmentation in contrast-enhanced 1 mm³-isotropic T1-Mprage sequences before SRT and during follow-up. A total of 3,145 MRI studies of 419 brain metastases from 189 patients were segmented. Progression was defined using a volumetric extension of the RANO-BM criteria. A subset of 205 metastases without progression/radionecrosis during their entire follow-up of at least 3 months was used to study the natural course of volumetric regression after SRT. Predictors for volumetric regression were investigated. A second subset of 179 metastases was used to investigate the prognostic significance of volumetric response at 3 months (defined as ≥20% and ≥65% volume reduction, respectively) for subsequent local control. Results Median relative metastasis volume post-SRT was 66.9% at 6 weeks, 38.6% at 3 months, 17.7% at 6 months, 2.7% at 12 months and 0.0% at 24 months. Radioresistant histology and FSRT vs. SRS were associated with reduced tumor regression for all time points. In multivariate linear regression, radiosensitive histology (p=0.006) was the only significant predictor for metastasis regression at 3 months. Volumetric regression ≥20% at 3 months post-SRT was the only significant prognostic factor for subsequent control in multivariate analysis (HR 0.63, p=0.023), whereas regression ≥65% was no significant predictor. Conclusions Volumetric regression post-SRT does not occur at a constant rate but is most pronounced in the first 6 weeks to 3 months. Despite decreasing over time, volumetric regression continues beyond 6 months post-radiotherapy and may lead to complete resolution of controlled lesions by 24 months. Radioresistant histology is associated with slower regression. We found that a cutoff of ≥20% regression for the volumetric definition of response at 3 months post-SRT was predictive for subsequent control whereas the currently proposed definition of ≥65% was not. These results have implications for standardized volumetric criteria in future radiotherapy trials for brain metastases.
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Affiliation(s)
- Dominik Oft
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Manuel Alexander Schmidt
- Department of Neuroradiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Thomas Weissmann
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Johannes Roesch
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Veit Mengling
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Siti Masitho
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christoph Bert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Luitpold Valentin Distel
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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17
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Eisenhut F, Schmidt MA, Putz F, Lettmaier S, Fröhlich K, Arinrad S, Coras R, Luecking H, Lang S, Fietkau R, Doerfler A. Classification of Primary Cerebral Lymphoma and Glioblastoma Featuring Dynamic Susceptibility Contrast and Apparent Diffusion Coefficient. Brain Sci 2020; 10:brainsci10110886. [PMID: 33233698 PMCID: PMC7699775 DOI: 10.3390/brainsci10110886] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/09/2020] [Accepted: 11/19/2020] [Indexed: 12/14/2022] Open
Abstract
This study aimed to differentiate primary central nervous system lymphoma (PCNSL) and glioblastoma (GBM) via multimodal MRI featuring radiomic analysis. MRI data sets of patients with histological proven PCNSL and GBM were analyzed retrospectively. Diffusion-weighted imaging (DWI) and dynamic susceptibility contrast (DSC) perfusion imaging were evaluated to differentiate contrast enhancing intracerebral lesions. Selective (contrast enhanced tumor area with the highest mean cerebral blood volume (CBV) value) and unselective (contouring whole contrast enhanced lesion) Apparent diffusion coefficient (ADC) measurement was performed. By multivariate logistic regression, a multiparametric model was compiled and tested for its diagnostic strength. A total of 74 patients were included in our study. Selective and unselective mean and maximum ADC values, mean and maximum CBV and ratioCBV as quotient of tumor CBV and CBV in contralateral healthy white matter were significantly larger in patients with GBM than PCNSL; minimum CBV was significantly lower in GBM than in PCNSL. The highest AUC for discrimination of PCNSL and GBM was obtained for selective mean and maximum ADC, mean and maximum CBV and ratioCBV. By integrating these five in a multiparametric model 100% of the patients were classified correctly. The combination of perfusion imaging (CBV) and tumor hot-spot selective ADC measurement yields reliable radiological discrimination of PCNSL from GBM with highest accuracy and is readily available in clinical routine.
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Affiliation(s)
- Felix Eisenhut
- Department of Neuroradiology, University of Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany; (M.A.S.); (H.L.); (S.L.); (A.D.)
- Correspondence: ; Tel.: +49-9131-853-9388
| | - Manuel A. Schmidt
- Department of Neuroradiology, University of Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany; (M.A.S.); (H.L.); (S.L.); (A.D.)
| | - Florian Putz
- Department of Radiation Oncology, University of Erlangen-Nuremberg, Universitaetsstrasse 27, 91054 Erlangen, Germany; (F.P.); (S.L.); (R.F.)
| | - Sebastian Lettmaier
- Department of Radiation Oncology, University of Erlangen-Nuremberg, Universitaetsstrasse 27, 91054 Erlangen, Germany; (F.P.); (S.L.); (R.F.)
| | - Kilian Fröhlich
- Department of Neurology, University of Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany;
| | - Soheil Arinrad
- Department of Neurosurgery, University of Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany;
| | - Roland Coras
- Department of Neuropathology, University of Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany;
| | - Hannes Luecking
- Department of Neuroradiology, University of Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany; (M.A.S.); (H.L.); (S.L.); (A.D.)
| | - Stefan Lang
- Department of Neuroradiology, University of Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany; (M.A.S.); (H.L.); (S.L.); (A.D.)
| | - Rainer Fietkau
- Department of Radiation Oncology, University of Erlangen-Nuremberg, Universitaetsstrasse 27, 91054 Erlangen, Germany; (F.P.); (S.L.); (R.F.)
| | - Arnd Doerfler
- Department of Neuroradiology, University of Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany; (M.A.S.); (H.L.); (S.L.); (A.D.)
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18
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Schubert P, Rutzner S, Eckstein M, Frey B, Schweizer C, Haderlein M, Lettmaier S, Semrau S, Gostian AO, Zhou JG, Gaipl US, Fietkau R, Hecht M. Prospective Evaluation of All-lesion Versus Single-lesion Radiotherapy in Combination With PD-1/PD-L1 Immune Checkpoint Inhibitors. Front Oncol 2020; 10:576643. [PMID: 33251140 PMCID: PMC7673414 DOI: 10.3389/fonc.2020.576643] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/08/2020] [Indexed: 12/25/2022] Open
Abstract
Background Local ablative treatments improve survival in patients with oligometastatic disease in addition to chemotherapy. The application of immune checkpoint inhibitors prolonged patients’ survival in different tumor entities. This raises the question if patients still benefit from intensified local treatments in combination with a more efficient systemic treatment with immune checkpoint inhibitors. Methods The prospective non-interventional ST-ICI trial investigates treatment with PD-1/PD-L1 (Programmed cell death protein 1/Programmed cell death 1 ligand 1) immune checkpoint inhibitors and radiotherapy in different tumor entities. Patients who started radiotherapy and immunotherapy concomitantly were included in this interim analysis. In this cohort patients with all-lesion radiotherapy (all tumor lesions irradiated, al-RT) were compared to patients with radiotherapy to only a single of their tumor lesions (single-lesion radiotherapy, sl-RT). Endpoints of the interim analysis were progression-free survival (PFS), overall survival (OS) and time to progression (TTP). Results A total of 104 patients were registered between April 2017 and August 2019. Fifty patients started immune checkpoint inhibitor treatment and radiotherapy concomitantly and were included. Most frequent tumor entities were non-small cell lung cancer (62%) followed by head and neck squamous cell cancer (26%). Most frequent location of radiotherapy was lung (34%) and central nervous system (20%). Median duration of follow-up was 8.6 months beginning with first administration of the immune-checkpoint-inhibitor. Median PFS was 9.2 months (95% CI, 5.8 – 12.6) in the al-RT group and 3.0 months (95% CI, 2.5 – 3.5) in the sl-RT group (p<0.001). Median OS was 11.6 months (95% CI, 8.1 - 15.1) in the al-RT group and 4.2 months (95% CI, 3.0 - 5.4) in the sl-RT group (p=0.007). Median TTP was not reached in the al-RT group compared to 4.6 months (95% CI, 1.1–8.0) in the sl-RT group (p=0.028). Univariate Cox regression analyses computed tumor entity, histology, central nervous system metastases, immunotherapy drug and al-RT as predictors of OS (with an effect p-value of ≤ 0.1). In the multivariable analysis only tumor entity and al-RT remained prognostic factors for OS. Conclusion Patients with PD-1/PD-L1 immune checkpoint inhibitor therapy benefit from local radiotherapy to all known lesions compared to single-lesion radiotherapy regarding PFS and OS.
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Affiliation(s)
- Philipp Schubert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Sandra Rutzner
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Markus Eckstein
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany.,Institute of Pathology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Claudia Schweizer
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Marlen Haderlein
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Antoniu-Oreste Gostian
- Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany.,Department of Otolaryngology-Head & Neck Surgery, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Jian-Guo Zhou
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany.,Department of Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Udo S Gaipl
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Markus Hecht
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
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19
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Schweizer C, Schubert P, Rutzner S, Eckstein M, Haderlein M, Lettmaier S, Semrau S, Gostian AO, Frey B, Gaipl US, Zhou JG, Fietkau R, Hecht M. Prospective evaluation of the prognostic value of immune-related adverse events in patients with non-melanoma solid tumour treated with PD-1/PD-L1 inhibitors alone and in combination with radiotherapy. Eur J Cancer 2020; 140:55-62. [PMID: 33045663 DOI: 10.1016/j.ejca.2020.09.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/11/2020] [Accepted: 09/01/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND Prospective data about the prognostic value of immune-related adverse events (irAEs) in non-melanoma solid tumours are rare. The prognostic value of irAEs in patients treated with combined radiotherapy and immunotherapy is currently unknown. PATIENTS AND METHODS The prospective non-interventional ST-ICI trial investigates treatment response of tumour patients to anti-programmed cell death-ligand 1 (PD-L1) immune checkpoint inhibitors alone and in combination with radiotherapy and possible predictive markers. Patients undergoing immunotherapy or immunoradiotherapy were surveyed for irAEs. RESULTS A total of 104 patients were included of whom 29 patients (28%) developed irAEs. Additional radiotherapy was performed in 50 patients (48%). Main tumour entities within the entire cohort were non-small cell lung cancer (NSCLC) (44%) and head and neck squamous cell carcinoma (42%). The rate of irAEs did not differ in patients with and without radiotherapy (p = 0.668). Patients who developed irAEs had longer overall survival (OS) (median: 22.8 months versus 9.0 months without irAEs, p = 0.001) and progression-free survival (PFS) (median: 7.8 months versus 3.2 months without irAEs, p = 0.002). In the subgroup with combined radiotherapy, patients with irAEs also had longer OS (median: 22.8 months versus 7.1 months without irAEs, p = 0.005) and PFS (median: 8.8 months versus 3.0 months without irAEs, p = 0.005). On multivariate analysis only PD-L1 on tumour cells (p = 0.049) and irAEs (p = 0.001) remained independent predictors of OS. CONCLUSION The development of irAEs represents a favourable prognostic parameter in patients undergoing immunotherapy and immunoradiotherapy for solid tumours.
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Affiliation(s)
- Claudia Schweizer
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany.
| | - Philipp Schubert
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Sandra Rutzner
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Markus Eckstein
- Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Marlen Haderlein
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Antoniu-Oreste Gostian
- Department of Otolaryngology - Head & Neck Surgery, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Udo S Gaipl
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Jian-Guo Zhou
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany; Department of Oncology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Rainer Fietkau
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Markus Hecht
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
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20
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Putz F, Weissmann T, Oft D, Schmidt MA, Roesch J, Siavooshhaghighi H, Filimonova I, Schmitter C, Mengling V, Bert C, Frey B, Lettmaier S, Distel LV, Semrau S, Fietkau R. FSRT vs. SRS in Brain Metastases-Differences in Local Control and Radiation Necrosis-A Volumetric Study. Front Oncol 2020; 10:559193. [PMID: 33102223 PMCID: PMC7554610 DOI: 10.3389/fonc.2020.559193] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 08/12/2020] [Indexed: 12/13/2022] Open
Abstract
Background: While the role of stereotactic radiotherapy for brain metastases is increasing, evidence on the comparative efficacy and safety of fractionated stereotactic radiotherapy (FSRT) and single-session radiosurgery (SRS) is scarce. Methods: Longitudinal volumetric analysis was performed in a consecutive cohort of 120 patients and 190 brain metastases (>0.065 cm3 in volume / > ~5 mm in diameter) treated exclusively with FSRT (n = 98) and SRS (n = 92), respectively. A total of 972 tumor segmentations was used, averaging 5.1 time points per metastasis. Progression was defined using a volumetric extension of the RANO-BM criteria. Local control and radionecrosis were compared for lesions treated with FSRT and SRS, respectively. Results: Metastases treated with FSRT were significantly larger at baseline (mean, 4.66 vs. 0.40 cm3, p < 0.001). Biologically effective dose (BED) for metastases (α/β = 12, linear-quadratic-cubic model) was significantly associated with local control, whereas BED for normal brain (α/β = 2, linear-quadratic model) was significantly associated with radionecrosis. Median time to local progression was 22.9 months in the FSRT group compared to 14.5 months in the SRS group (p = 0.022). Overall radionecrosis rate at 12 months was 3.4% for FSRT and 14.8% for SRS (p = 0.010). Radionecrosis °IV requiring resection with histologic proof of radiation necrosis also was significantly reduced in the FSRT group (FSRT 0.0% vs. SRS 3.9%, p = 0.041). In multivariate analysis, FSRT was associated with reduced risk of progression (HR 0.47, p = 0.015) and reduced risk of radionecrosis (HR 0.18, p = 0.045). Conclusions: This volumetric study provides initial evidence that the improvements in therapeutic ratio expected for FSRT in larger brain metastases, might equally extend into the domain of smaller metastases, traditionally less considered for fractionated treatment. FSRT might constitute an important tool to further increase local control and reduce radionecrosis risk in stereotactic radiotherapy for brain metastases, that should be assessed in randomized intervention trials.
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Affiliation(s)
- Florian Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Thomas Weissmann
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Dominik Oft
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Manuel Alexander Schmidt
- Department of Neuroradiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Johannes Roesch
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Hadi Siavooshhaghighi
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Irina Filimonova
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Charlotte Schmitter
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Veit Mengling
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Christoph Bert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Luitpold Valentin Distel
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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Hofmann S, Schmidt MA, Weissmann T, Eyüpoglu I, Strnad A, Semrau S, Fietkau R, Putz F, Lettmaier S. Evidence for improved survival with bevacizumab treatment in recurrent high-grade gliomas: a retrospective study with ("pseudo-randomized") treatment allocation by the health insurance provider. J Neurooncol 2020; 148:373-379. [PMID: 32409944 PMCID: PMC7316675 DOI: 10.1007/s11060-020-03533-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/07/2020] [Indexed: 12/19/2022]
Abstract
Introduction Despite a large number of trials, the role of bevacizumab (BEV) in the treatment of recurrent high-grade gliomas is still controversial. Evidence regarding an effect on overall survival in this context is ultimately inconclusive. At the Department of Radiation Oncology at Erlangen, Germany we treated a large cohort of patients with recurrent gliomas where bevacizumab use was determined exclusively by the health care provider’s approval of reimbursement. Methods 61 patients (between 06/2008 and 01/2014) with recurrent high-grade gliomas had reimbursement requests for BEV sent to their health insurance. 37 patients out of 61 (60.7%) had their requests approved and therefore received bevacizumab (BEV-arm) as part of their treatment. The remaining 24 (39.3%) patients received standard therapy without bevacizumab (non-BEV-arm). Survival endpoints were defined with reference to the first BEV request to the health insurance provider. Results Median overall survival (OS) for the whole cohort was 7.0 months. OS was significantly better for BEV vs. Non-BEV patients (median, 10.3 vs. 4.2 months, logrank p = 0.023). There was an increased BEV benefit in cases of higher-order recurrences (first order recurrence BEV vs. Non-BEV, 12.5 vs. 10.2 months, p = 0.578) (second or higher order of recurrence, 9.9 vs. 2.6 months, p = 0.010). On multivariate analysis for overall survival the prognostic impact of bevacizumab (HR = 0.43, p = 0.034) remained significant. Conclusion Our results suggest an influence of BEV on overall survival in a heavily pretreated patient population suffering from high-grade gliomas with BEV benefit being greatest in case of second or later recurrence.
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Affiliation(s)
- Susanne Hofmann
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Manuel Alexander Schmidt
- Department of Neuroradiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Thomas Weissmann
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Ilker Eyüpoglu
- Department of Neurosurgery, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Annedore Strnad
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Sabine Semrau
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Florian Putz
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany.
| | - Sebastian Lettmaier
- Department of Radiotherapy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitaetsstraße 27, 91054, Erlangen, Germany
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Böckelmann F, Putz F, Kallis K, Lettmaier S, Fietkau R, Bert C. Adaptive radiotherapy and the dosimetric impact of inter- and intrafractional motion on the planning target volume for prostate cancer patients. Strahlenther Onkol 2020; 196:647-656. [PMID: 32157345 PMCID: PMC7305089 DOI: 10.1007/s00066-020-01596-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 02/03/2020] [Indexed: 12/25/2022]
Abstract
Purpose To investigate the dosimetric influence of daily interfractional (inter) setup errors and intrafractional (intra) target motion on the planning target volume (PTV) and the possibility of an offline adaptive radiotherapy (ART) method to correct larger patient positioning uncertainties in image-guided radiotherapy for prostate cancer (PCa). Materials and methods A CTV (clinical target volume)-to-PTV margin ranging from 15 mm in LR (left-right) and SI (superior-inferior) and 5–10 mm in AP (anterior-posterior) direction was applied to all patients. The dosimetric influence of this margin was retrospectively calculated by analysing systematic and random components of inter and intra errors of 31 consecutive intermediate- and high-risk localized PCa patients using daily cone beam computed tomography and kV/kV (kilo-Voltage) imaging. For each patient inter variation was assessed by observing the first 4 treatment days, which led to an offline ART-based treatment plan in case of larger variations. Results: Systematic inter uncertainties were larger (1.12 in LR, 2.28 in SI and 1.48 mm in AP) than intra systematic errors (0.44 in LR, 0.69 in SI and 0.80 mm in AP). Same findings for the random error in SI direction with 3.19 (inter) and 2.30 mm (intra), whereas in LR and AP results were alike with 1.89 (inter) and 1.91 mm (intra) and 2.10 (inter) and 2.27 mm (intra), respectively. The calculated margin revealed dimensions of 4–5 mm in LR, 8–9 mm in SI and 6–7 mm in AP direction. Treatment plans which had to be adapted showed smaller variations with 1.12 (LR) and 1.72 mm (SI) for Σ and 4.17 (LR) and 3.75 mm (SI) for σ compared to initial plans with 1.77 and 2.62 mm for Σ and 4.46 and 5.39 mm for σ in LR and SI, respectively. Conclusion The currently clinically used margin of 15 mm in LR and SI and 5–10 mm in AP direction includes inter and intra uncertainties. The results show that offline ART is feasible which becomes a necessity with further reductions in PTV margins. Electronic supplementary material The online version of this article (10.1007/s00066-020-01596-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Felix Böckelmann
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Karoline Kallis
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Christoph Bert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany.
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Haderlein M, Speer S, Ott O, Lettmaier S, Hecht M, Semrau S, Frey B, Scherl C, Iro H, Kesting M, Fietkau R. Dose Reduction to the Swallowing Apparatus and the Salivary Glands by De-Intensification of Postoperative Radiotherapy in Patients with Head and Neck Cancer: First (Treatment Planning) Results of the Prospective Multicenter DIREKHT Trial. Cancers (Basel) 2020; 12:cancers12030538. [PMID: 32110958 PMCID: PMC7139715 DOI: 10.3390/cancers12030538] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/07/2020] [Accepted: 02/20/2020] [Indexed: 02/06/2023] Open
Abstract
Aim: Evaluating radiotherapy treatment plans of the prospective DIREKHT trial (ClinicalTrials.gov, NCT02528955) investigating de-intensification of radiotherapy in patients with head and neck cancer. Patients and Methods: The first 30 patients from the DIREKHT trial of the leading study centre were included in this analysis. Standard treatment plans and study treatment plans derived from the protocol were calculated for each patient. Sizes of planning target volumes (PTVs) and mean doses to organs at risk were compared using the Student’s t-test with paired samples. Results: Mean PTV3 including primary tumor region and ipsilateral elective neck up to a dose of 50 Gy in the study treatment plans was 662 mL (+/− 165 mL standard deviation (SD)) and therefore significantly smaller than those of the standard treatment plans (1166 mL (+/− 266 mL SD). In the medial and inferior constrictor muscles, cricopharyngeal muscle, glottic and supraglottic laryngeal areas, arytenoid cartilages, contralateral major salivary glands highly significant dose reductions (p < 0.0001) of more than 10 Gy were achieved in study treatment plan compared to standard treatment plan. Conclusion: De-intensification of radiotherapy led to smaller planning target volumes and clinical relevant dose reductions in the swallowing apparatus and in the contralateral salivary glands.
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Affiliation(s)
- Marlen Haderlein
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (S.S.); (O.O.); (S.L.); (M.H.); (S.S.); (B.F.); (R.F.)
- Correspondence: ; Tel.: +49-9131-8543-025; Fax: +49-9131-8535-969
| | - Stefan Speer
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (S.S.); (O.O.); (S.L.); (M.H.); (S.S.); (B.F.); (R.F.)
| | - Oliver Ott
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (S.S.); (O.O.); (S.L.); (M.H.); (S.S.); (B.F.); (R.F.)
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (S.S.); (O.O.); (S.L.); (M.H.); (S.S.); (B.F.); (R.F.)
| | - Markus Hecht
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (S.S.); (O.O.); (S.L.); (M.H.); (S.S.); (B.F.); (R.F.)
| | - Sabine Semrau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (S.S.); (O.O.); (S.L.); (M.H.); (S.S.); (B.F.); (R.F.)
| | - Benjamin Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (S.S.); (O.O.); (S.L.); (M.H.); (S.S.); (B.F.); (R.F.)
| | - Claudia Scherl
- Department of Otorhinolaryngology, Universitätsklinikum Mannheim, Medical Faculty Mannheim, University of Heidelberg, 68167 Mannheim, Germany;
- Department of Otorhinolaryngology, Universitätsklinikum, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany;
| | - Heinrich Iro
- Department of Otorhinolaryngology, Universitätsklinikum, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany;
| | - Marco Kesting
- Department of Oral and Maxillofacial Surgery, Universitätsklinikum, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany;
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany; (S.S.); (O.O.); (S.L.); (M.H.); (S.S.); (B.F.); (R.F.)
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Ziegler M, Lettmaier S, Fietkau R, Bert C. Performance of Makerless Tracking for Gimbaled Dynamic Tumor Tracking. Z Med Phys 2019; 30:96-103. [PMID: 31780095 DOI: 10.1016/j.zemedi.2019.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/23/2019] [Accepted: 10/23/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND AND PURPOSE The purpose of this work is to report the workflow and the accuracy of the new markerless dynamic tumor tracking (MLDTT) method of the Vero 4DRT system introduced with ExacTrac 3.6.1. MATERIAL AND METHODS Phantom measurements were performed to assess the accuracy of the MLDTT algorithm by using the QA-tool which is provided by the vendor. A patient breathing curve was used as the motion trajectory of the phantom and the target positions detected by the MLDTT algorithm were compared to the defined positions. Furthermore, eight patients have been treated with MLDTT between May 2018 and July 2019. A log-file analysis is used to evaluate MLDTT treatment data. RESULTS The accuracy of the MLDTT detection is 0.12mm ± 0.12mm, 0.12mm ± 0.11mm, 0.20mm ± 0.21mm for the x-, y-, z-direction, respectively. These values are comparable to the accuracy of marker based DTT at the Vero system. The median treatment time was 21min 34seconds and 175kV images were acquired during treatment for monitoring the target motion. CONCLUSION The accuracy of the MLDTT algorithm is comparable to the marker based approach and the accuracy reported for the XSight Lung of the CyberKnife. Eight patients were treated successfully using MLDTT and the treatment times are comparable to a standard DTT treatment.
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Affiliation(s)
- Marc Ziegler
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Christoph Bert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany.
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Abstract
The Vero system can treat intra-fractionally moving tumors with gimbaled dynamic tumor tracking (DTT) by rotating the treatment beam so that it follows the motion of the tumor. However, the changes in the beam geometry and the constant breathing motion of the patient influence the dose applied to the patient. This study aims to perform a full 4D dose reconstruction for thirteen patients treated with DTT at the Vero system at the Universitätsklinikum Erlangen and investigates the temporal resolution required to perform an accurate 4D dose reconstruction. For all patients, a 4DCT was used to train a 4D motion model, which is able to calculate pseudo-CT images for arbitrary breathing phases. A new CT image was calculated for every 100 ms of treatment and a dose calculation was performed according to the current beam geometry (i.e. the rotation of the treatment beam at this moment in time) by rotating according to the momentary beam rotation, which is extracted from log-files. The resulting dose distributions were accumulated on the planning CT and characteristic parameters were extracted and compared. [Formula: see text]-evaluations of dose accumulations with different spatial-temporal resolutions were performed to determine the minimal required resolution. In total 173 700 dose calculations were performed. The accumulated 4D dose distributions show a reduced mean GTV dose of 0.77% compared to the static treatment plan. For some patients larger deviations were observed, especially in the presence of a poor 4DCT quality. The [Formula: see text]-evaluation showed that a temporal resolution of 500 ms is sufficient for an accurate dose reconstruction. If the tumor motion is regarded as well, a spatial-temporal sampling of 1400 ms and 2 mm yields accurate results, which reduces the workload by 84%.
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Affiliation(s)
- Marc Ziegler
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054 Erlangen, Germany
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Ziegler M, Lettmaier S, Fietkau R, Bert C. Choosing a reference phase for a dynamic tumor tracking treatment: A new degree of freedom? Med Phys 2019; 46:3371-3377. [DOI: 10.1002/mp.13654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/07/2019] [Accepted: 06/04/2019] [Indexed: 12/20/2022] Open
Affiliation(s)
- Marc Ziegler
- Department of Radiation Oncology Universitätsklinikum Erlangen, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg, Universitätsstraße 27 91054Erlangen Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology Universitätsklinikum Erlangen, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg, Universitätsstraße 27 91054Erlangen Germany
| | - Rainer Fietkau
- Department of Radiation Oncology Universitätsklinikum Erlangen, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg, Universitätsstraße 27 91054Erlangen Germany
| | - Christoph Bert
- Department of Radiation Oncology Universitätsklinikum Erlangen, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg, Universitätsstraße 27 91054Erlangen Germany
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Haderlein M, Scherl C, Semrau S, Lettmaier S, Hecht M, Putz F, Iro H, Agaimy A, Fietkau R. Salivary gland carcinoma (SGC) with perineural spread and/or positive resection margin - high locoregional control rates after photon (chemo) radiotherapy - experience from a monocentric analysis. Radiat Oncol 2019; 14:68. [PMID: 31014362 PMCID: PMC6480845 DOI: 10.1186/s13014-019-1260-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 03/22/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The aim was to evaluate the outcome, especially locoregional control of patients with locally advanced salivary gland carcinoma (SGC) with perineural spread (Pn1) and/or positive resection margins (R1/2) after postoperative photon (chemo) radiotherapy in a single centre. METHODS We retrospectively reviewed data of 65 patients with newly diagnosed locally advanced SGC without distant metastases who underwent radio (chemo) therapy in the department of radiation oncology of the university hospital of Erlangen from January 2000 until April 2017. Kaplan Meier method was used to calculate survival and recurrence rates. In univariate analysis the log-rank test was used to correlate patient-/tumor- and treatment-related parameters to survival and recurrence rates. RESULTS Median follow-up was 45 months (range: 6; 215). After 1, 3, 5 years cumulative incidence of local and locoregional failure was 3.1, 7.0, 7.0% and 3.1, 9.7, 12.9%, whereas cumulative incidence of distant metastases (DM) was 15.6, 36.0, 44.0%. After 1,3, 5 years cumulative Overall (OS) and Disease-free survival (DFS) was 90.5, 74.9, 63.9% and 83.0, 54.8, 49.4%. The only significant predictor for decreased local and locoregional control was a macroscopic resection margin(R2) (p = 0.002 and p = 0.04). High-grade histology (p = 0.006), lymph node metastases with extracapsular spread (p = 0.044) and an advanced T-stage (p = 0.031) were associated with an increased rate of DM. High-grade histology was the only factor predicting for a decreased DFS (p = 0.014). CONCLUSION Photon radiotherapy leads to high local and locoregional control rates in a high-risk patient population with SGC with microscopically positive resection margins and/or perineural spread. The most common site of disease recurrence was distant metastases. Therefore the real challenge for the future should be to prevent distant metastases.
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Affiliation(s)
- Marlen Haderlein
- Department of Radiation Oncology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), D-91054, Erlangen, Germany.
| | - Claudia Scherl
- Department of Otorhinolaryngology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.,Department of Otorhinolaryngology, University Hospital of Mannheim, Mannheim, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), D-91054, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), D-91054, Erlangen, Germany
| | - Markus Hecht
- Department of Radiation Oncology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), D-91054, Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), D-91054, Erlangen, Germany
| | - Heinrich Iro
- Department of Otorhinolaryngology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Abbas Agaimy
- Institute of Pathology, University Hospital of Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), D-91054, Erlangen, Germany
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Ziegler M, Lettmaier S, Fietkau R, Bert C. EP-1959 Performance of Marker-less Tracking for Gimbaled Dynamic Tumor Tracking. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32379-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Koca S, Distel L, Lubgan D, Weissmann T, Lambrecht U, Lang-Welzenbach M, Eyüpoglu I, Bischoff B, Buchfelder M, Semrau S, Fietkau R, Lettmaier S, Putz F. Time course of pain response and toxicity after whole-nerve-encompassing LINAC-based stereotactic radiosurgery for trigeminal neuralgia-a prospective observational study. Strahlenther Onkol 2019; 195:745-755. [PMID: 30877350 DOI: 10.1007/s00066-019-01450-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 02/26/2019] [Indexed: 11/27/2022]
Abstract
PURPOSE To prospectively evaluate the time course of pain response and toxicity after linear accelerator-based whole-nerve-encompassing radiosurgery (LINAC-SRS) using a uniform treatment schedule for dosing and target volume definition in patients with refractory trigeminal neuralgia. METHODS From December 2012 to December 2016, 21 patients were treated using a standardized protocol. Patients received LINAC-SRS with 70 Gy to the cisternal portion while aiming for the 90% isodose to fully envelope the nerve in one cross-sectional plane. Data on pain, analgesics, and toxicity were gathered prospectively. Four time intervals (1-6, 6-12, 12-18, and 18-24 months) were defined and compared to baseline and each other. RESULTS The median follow-up from radiotherapy was 16 months. Freedom from pain was achieved at least once in 90.5, 81.0, and 85.7% of patients for everyday pain, rest pain, and pain peaks, respectively. At 1-6 months, pain was significantly reduced in everyday routine (mean VAS, 2.0/10 vs. 5.8/10; P = 0.004), at rest (1.5/10 vs. 4.0/10; P = 0.002), and for pain peaks (2.9/10 vs. 10/10; P < 0.001), as was the number of analgesics (mean 1.5 vs. 2.9; P < 0.001). No significant increase in pain or analgesics was observed for subsequent time intervals. At last follow-up, reduction in pain compared to baseline for everyday routine (2.1/10 vs. 5.8/10; P = 0.010) and for pain peaks (3.3/10 vs. 10/10; P < 0.001) was significant, whereas it was not for rest pain (1.8/10 vs. 3.9/10; P = 0.073). Most toxicities were related to trigeminal nerve impairment, with 42.9% reporting new-onset hypoesthesia at last follow-up. CONCLUSION This study provides prospective data after whole nerve encompassing LINAC-SRS for trigeminal neuralgia. No significant pain relapse was observed.
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Affiliation(s)
- Selim Koca
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Luitpold Distel
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Dorota Lubgan
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Thomas Weissmann
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Ulrike Lambrecht
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Marga Lang-Welzenbach
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Ilker Eyüpoglu
- Department of Neurosurgery, Friedrich-Alexander-University Erlangen-Nuremberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Barbara Bischoff
- Department of Neurosurgery, Friedrich-Alexander-University Erlangen-Nuremberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Michael Buchfelder
- Department of Neurosurgery, Friedrich-Alexander-University Erlangen-Nuremberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitaetsstraße 27, 91054, Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitaetsstraße 27, 91054, Erlangen, Germany.
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Schreiner W, Dudek W, Rieker RJ, Lettmaier S, Fietkau R, Sirbu H. Major Pathologic Response after Induction Therapy Has a Long-Term Impact on Survival and Tumor Recurrence in Stage IIIA/B Locally Advanced NSCLC. Thorac Cardiovasc Surg 2019; 68:639-645. [PMID: 30808023 DOI: 10.1055/s-0039-1679884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Major pathologic response (MPR) determines favorable outcome in locally advanced non-small cell lung cancer after induction therapy (IT) followed by lung resection. The aim of this retrospective study was to identify the prognostic relevance of MPR in long-term interval. METHODS In 55 patients, the survival rate according to MPR and non-MPR was estimated by Kaplan-Meier method and compared using log-rank, Breslow, and Tarone-Ware tests. RESULTS The IT included chemoradiation with 50.4 Gy (range: 45-56.4 Gy) combined with platinum-based chemotherapy in 52 patients (94.5%) and platinum-based chemotherapy in 3 patients (5.5%). Perioperative morbidity and 30-day mortality were 36 and 3.6%, respectively. The estimated 5-year postoperative and progressive-free survivals were statistically significantly improved in MPR versus non-MPR with 53.5 versus 18% and 49.4 versus 18.5%, respectively. According to the log-rank, Breslow, and Tarone-Ware tests, the MPR demonstrates prognostic significance in early, long-term, and whole postoperative interval. CONCLUSION MPR is associated with a robust correlation to long-term postoperative and recurrence-free survival improvement, and can potentially simplify the multidisciplinary debate and allow further stratification of adjuvant treatment in multimodality therapy.
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Affiliation(s)
- Waldemar Schreiner
- Division of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nuremberg, Erlangen, Germany
| | - Wojciech Dudek
- Division of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nuremberg, Erlangen, Germany
| | - Ralf Joachim Rieker
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nuremberg, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nuremberg, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Friedrich-Alexander-Universität Erlangen-Nuremberg, Erlangen, Germany
| | - Horia Sirbu
- Division of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nuremberg, Erlangen, Germany
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Ziegler M, Brandt T, Lettmaier S, Fietkau R, Bert C. Performance of gimbal-based dynamic tumor tracking for treating liver carcinoma. Radiat Oncol 2018; 13:242. [PMID: 30518398 PMCID: PMC6280466 DOI: 10.1186/s13014-018-1180-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 11/12/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Since the introduction of tumor tracking in radiotherapy, it is possible to ensure a precise irradiation of moving targets. To follow the tumor movement, most systems rely on the detection of implanted markers and correlation models between the internal and external patient movement. This study reports the clinical workflow and first results of the dynamic tumor tracking (DTT) performance for patients with liver carcinoma at the Vero SBRT system of the University Hospital Erlangen regarding the detection of the internal marker and the changes of the determined correlation models. METHODS So far 13 liver patients were treated with DTT. For each patient, two fiducial markers (FM), which are monitored with X-rays during treatment, were implanted in the vicinity of the tumor. All patients received a fraction dose of 4-6 Gy with 8 to 12 fractions. Treatment and patient data is evaluated by processing the acquired log-files of the DTT treatment. Based on this, the marker detection and the changes of the correlation model between the internal and external movement is investigated. RESULTS The median treatment time was 19:42 min. During treatment a median of 173 X-ray stereoscopic images were acquired. The marker detection was successful in 64.6% of the images. The FM detection is independent of the relative angle between the marker and the imager, but shows a dependency on the average intensity surrounding the FM position within the kV images. The number of correlation models needed during treatment increases in the presence of baseline shifts. The comparison of the correlation models shows large differences in the internal-external correlation between the different models acquired for one patient. CONCLUSION Thirteen liver patients were treated with DTT at the Vero SBRT system and the marker detection was analyzed. Furthermore, the importance of regularly monitoring the internal target motion could be shown, since the correlation between the internal and external motion changes considerably over the course of the treatment.
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Affiliation(s)
- Marc Ziegler
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Tobias Brandt
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Christoph Bert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany.
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Burjakow K, Fietkau R, Putz F, Achterberg N, Lettmaier S, Knippen S. Fractionated stereotactic radiation therapy for adrenal metastases: contributing to local tumor control with low toxicity. Strahlenther Onkol 2018; 195:236-245. [PMID: 30374590 DOI: 10.1007/s00066-018-1390-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 10/17/2018] [Indexed: 11/28/2022]
Abstract
PURPOSE To report on the Erlangen (UK-Er) experience with linear accelerator stereotactic body radiation therapy (LINAC SBRT) for adrenal metastasis from various primary tumors. MATERIALS AND METHODS 33 patients were treated. Primary sites included lung (n = 19), melanoma (n = 8), colorectal (n = 2), hepatocellular (n = 1), esophageal (n = 2), and breast cancer (n = 1). 14 patients were treated palliatively, 19 patients were treated with local curative intent. RADIATION TREATMENT Treatment planning was done based on an exhale, mid-ventilation, and inspiration CT series. Further planning CTs were done to check for the correctness of the breathing pattern. Irradiation was performed using a NOVALIS (Varian, Palo Alto, CA, USA; Brainlab AG, München, Germany) linear accelerator. The isocenter was verified before each treatment session using the BrainLab ExacTrac® (Brainlab AG, München, Germany) system to minimize setup errors. Dose was prescribed to the planning target volume (PTV) surrounding 90% isodose. FOLLOW-UP Depending on their overall performance status and prognosis, patients received clinical check-ups and radiological imaging. Median follow-up was 11 months. STATISTICAL ANALYSIS IBM SPSS v. 24 was used for univariate analysis using Kaplan-Meier curves, nonparametric Kruskal-Wallis test, and the chi-square test for frequency distributions. Toxicity was graded according to NCI CTCAE v4.0. Depending on radiologic imaging, patients were classified as stable, regression, and progression. RESULTS Median survival was 11 months, median PFS was 5 months. Median local failure-free survival was 21 months. Patients who were treated with curative intent showed a better survival curve (p < 0.0001) and PFS (p = 0.004). BED ranged from 42 to 108.8 Gy, median BED was 67.2 Gy. Three BED groups were formed. Overall survival curves differed significantly (p = 0.046), favoring the high-dose group. 21 patients were free from any adverse events or discomfort. In 7 cases, a grade I toxicity was noted.
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Affiliation(s)
- Kim Burjakow
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Nils Achterberg
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Stefan Knippen
- Department of Radiation Oncology, Friedrich-Schiller-University Jena, Bachstraße 18, 07743, Jena, Germany.
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Böckelmann F, Hammon M, Lettmaier S, Fietkau R, Bert C, Putz F. Penile bulb sparing in prostate cancer radiotherapy : Dose analysis of an in-house MRI system to improve contouring. Strahlenther Onkol 2018; 195:153-163. [PMID: 30315483 DOI: 10.1007/s00066-018-1377-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 09/20/2018] [Indexed: 01/01/2023]
Abstract
OBJECTIVE This study aimed to assess the reduction in dose to the penile bulb (PB) achieved by MRI-based contouring following drinking and endorectal balloon (ERB) instructions. PATIENTS AND METHODS A total of 17 prostate cancer patients were treated with intensity-modulated radiation therapy (IMRT) and interstitial brachytherapy (IBT). CT and MRI datasets were acquired back-to-back based on a 65 cm3 air-filled ERB and drinking instructions. After rigid co-registration of the imaging data, the CT-based planning target volume (PTV) used for treatment planning was retrospectively compared to an MRI-based adaptive PTV and the dose to the PB was determined in each case. The adapted PTV encompassed a caudally cropped CT-based PTV which was defined on the basis of the MRI-based prostate contour plus an additional 5 mm safety margin. RESULTS In the seven-field IMRT treatment plans, the MRI-based adapted PTV achieved mean (Dmean) and maximum (Dmax) doses to the PB which were significantly lower (by 7.6 Gy and 10.9 Gy, respectively; p <0.05) than those of the CT-contoured PTV. For 6 patients, the estimated PB Dmax (seven-field IMRT and IBT) for the adapted PTV was <70 Gy, whereas only 1 patient fulfilled this criterium with the CT-based PTV. CONCLUSION MRI-based contouring and seven-field IMRT-based treatment planning achieved dose sparing to the PB. Whereas the comparison of MRI and CT contouring only relates to external beam radiotherapy (EBRT) sparing, considering EBRT and IBT shows the improvement in PB sparing for the total treatment.
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Affiliation(s)
- F Böckelmann
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - M Hammon
- Department of Radiology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Maximiliansplatz 1, 91054, Erlangen, Germany
| | - S Lettmaier
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - R Fietkau
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - C Bert
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany.
| | - F Putz
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universitätsstraße 27, 91054, Erlangen, Germany
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Schreiner W, Gavrychenkova S, Dudek W, Lettmaier S, Rieker R, Fietkau R, Sirbu H. [Lung Resection after Definitive and Neo-Adjuvant Chemoradiation for Stage IIIA/B Locally Advanced Non-Small Cell Lung Cancer: a Retrospective Analysis]. Zentralbl Chir 2018; 143:307-315. [PMID: 29933483 DOI: 10.1055/a-0584-7886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND The outcomes of so called "salvage" resections after definitive chemoradiation vs. curative resections after neoadjuvant chemoradiation therapy (IT-resection) in patients with stage IIIA/B locally advanced non-small cell lung cancer have rarely been compared. The aim of our study was to compare perioperative results, postoperative and recurrence-free survival and to identify relevant prognostic survival factors for both therapy strategies. PATIENTS AND METHODS Between June 2008 and May 2017, 43 patients underwent pulmonary resection following induction therapy (group 1) and 14 patients underwent salvage resection after definitive chemoradiation (group 2). Retrospective analysis was performed of demographic factors, tumour stage and location, initial therapy, preoperative regression status, perioperative morbidity and mortality, postoperative and recurrence-free survival. RESULTS In group 2, significantly higher radiation dose was applied (p < 0.001) and the interval between chemoradiation and lung resection was significantly longer (p = 0.02). In addition, significantly higher perioperative blood loss and more frequent blood transfusions were noted (p = 0.003 and 0.005, respectively). Perioperative morbidity and mortality were statistically comparable in the two groups (p = 0.72 and 0.395, respectively). Postoperative 5 year survival in group 1 was 55%, in group 2 48% (log-rank p = 0.353). Five year recurrence-free survival in group 1 was 53%, in group 2 42% (log-rank p = 0.180). Diffuse metastasis occurred mostly in group 2, whereas in group 1 oligometastasis was more frequently noted. CONCLUSION Postoperative outcome after salvage resection seems statistically comparable to results following curative resection after induction therapy. Diffuse distant metastasis is frequently noted. Careful patient selection is required.
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Affiliation(s)
- Waldemar Schreiner
- Thoraxchirurgische Abteilung in der Chirurgischen Klinik, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Deutschland
| | - Sofiia Gavrychenkova
- Thoraxchirurgische Abteilung in der Chirurgischen Klinik, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Deutschland
| | - Wojciech Dudek
- Thoraxchirurgische Abteilung in der Chirurgischen Klinik, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Deutschland
| | - Sebastian Lettmaier
- Klinik für Strahlentherapie, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Deutschland
| | - Ralf Rieker
- Pathologisches Institut, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Deutschland
| | - Rainer Fietkau
- Klinik für Strahlentherapie, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Deutschland
| | - Horia Sirbu
- Thoraxchirurgische Abteilung in der Chirurgischen Klinik, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Deutschland
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Schreiner W, Gavrychenkova S, Dudek W, Rieker RJ, Lettmaier S, Fietkau R, Sirbu H. Pathologic complete response after induction therapy-the role of surgery in stage IIIA/B locally advanced non-small cell lung cancer. J Thorac Dis 2018; 10:2795-2803. [PMID: 29997942 DOI: 10.21037/jtd.2018.05.68] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Background Pathologic complete response (pCR) is dominant prognostic factor determining favorable outcome in locally advanced non-small cell lung cancer (NSCLC) after induction therapy (IT). There is no non-operative diagnostics that adequately estimates the pCR. Aim of this retrospective study was to assess the correlation between clinical and pathological factors in patients with pCR. Methods Twenty-five patients with pCR after curative lung resection following IT were assessed using univariate and multivariate Cox regression and descriptive analysis. The survival rate was estimated by Kaplan-Meier method. Results The IT included chemoradiation with median doses of 50.4 Gy (range, 45-59.4 Gy) combined with platinum-based chemotherapy in 23 patients (92%) and induction platinum-based chemotherapy in 2 patients (8%). Clinical tumor stage before IT was IIIA in 21, IIIB in 4 patients. Mean interval between IT and surgery was 8.1±3.0 weeks. Perioperative morbidity and 30-day mortality was 32% and 4%, respectively. There was no significant correlation of pCR and different clinical and pathological factors. The estimated 5-year long-term survival (LTS) and progressive-free survival (PFS) was 57% and 54%, respectively. The median LTS and PFS was not reached. Conclusions pCR in patients with locally advanced NSCLC following IT is an independent prognostic factor, without correlation with pathological and clinical factors. Non-operative accurate assessment of pCR is currently impossible. Surgical resection enables secure identification of pCR and might improve the patient stratification for additive therapy.
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Affiliation(s)
- Waldemar Schreiner
- Division of Thoracic Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Sofiya Gavrychenkova
- Division of Thoracic Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Wojciech Dudek
- Division of Thoracic Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Ralf Joachim Rieker
- Institute of Pathology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Horia Sirbu
- Division of Thoracic Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
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Ziegler M, Brandt T, Lettmaier S, Fietkau R, Bert C. EP-2030: Examination of the automatic fiducial marker detection on the Vero system. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32339-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Schreiner W, Dudek W, Lettmaier S, Fietkau R, Sirbu H. Long-Term Survival after Salvage Surgery for Local Failure after Definitive Chemoradiation Therapy for Locally Advanced Non-small Cell Lung Cancer. Thorac Cardiovasc Surg 2017; 66:135-141. [PMID: 28992654 DOI: 10.1055/s-0037-1606597] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND The incidence of local failure and residual tumor after definitive chemoradiation therapy (dCRT) for locally advanced non-small-cell lung cancer remains high, irrespective of applied radiation dose (>59 Gy). So-called salvage surgery has been suggested as a feasible treatment option after failure of definitive chemoradiation for locally advanced non-small cell lung cancer (NSCLC). Experience with salvage lung surgery (SLS) is limited, and long-term survival is rarely reported. Patient selection criteria for surgical lung salvage are not defined. The aim of this study was to assess postoperative survival and perioperative morbidity/mortality to identify prognostic factors and to define patient selection criteria. PATIENTS AND METHODS Records of 13 consecutive patients with locally advanced NSCLC, who underwent SLS at a single institution between March 2011 and November 2016, were reviewed. Descriptive statistics were applied for patient characteristics and surgical and oncological outcome. Survival rates were calculated using the Kaplan-Meier method and were compared with the long-rank test. RESULTS All patients initially received curative-intent definitive chemoradiation with median radiation doses of 66 Gy (range 59.4-72) and concurrent platinum-based chemotherapy. Clinical tumor stage before definitive chemoradiation was IIIA in 9, IIIB in 3, IV in 1 patients. Median interval between definitive chemoradiation and salvage surgery was 6.7 months. Perioperative morbidity and 30-days-mortality was 38% and 7.7%, respectively. The median postoperative survival and estimated 5-year survival rate were 29.7 months and 46%, respectively. CONCLUSION SLS in patients with locally advanced non-small cell lung surgery following dCRT is feasible, prolongs long-term survival and allows local tumor control. Selection criteria remain undefined and patients should be considered surgical candidates during multidisciplinary team conference.
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Affiliation(s)
- Waldemar Schreiner
- Division for Thoracic Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, University Hospital, Erlangen, Germany
| | - Wojciech Dudek
- Division for Thoracic Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, University Hospital, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, University Hospital, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, University Hospital, Erlangen, Germany
| | - Horia Sirbu
- Division for Thoracic Surgery, Friedrich-Alexander-University Erlangen-Nuremberg, University Hospital, Erlangen, Germany
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Haderlein M, Scherl C, Semrau S, Lettmaier S, Hecht M, Erber R, Iro H, Fietkau R, Agaimy A. Impact of postoperative radiotherapy and HER2/new overexpression in salivary duct carcinoma. Strahlenther Onkol 2017; 193:961-970. [DOI: 10.1007/s00066-017-1196-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Accepted: 08/02/2017] [Indexed: 12/14/2022]
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Putz F, Putz T, Goerig N, Knippen S, Gryc T, Eyüpoglu I, Rössler K, Semrau S, Lettmaier S, Fietkau R. Improved survival for elderly married glioblastoma patients : Better treatment delivery, less toxicity, and fewer disease complications. Strahlenther Onkol 2016; 192:797-805. [PMID: 27628965 DOI: 10.1007/s00066-016-1046-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Accepted: 08/17/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Marital status is a well-described prognostic factor in patients with gliomas but the observed survival difference is unexplained in the available population-based studies. METHODS A series of 57 elderly glioblastoma patients (≥70 years) were analyzed retrospectively. Patients received radiotherapy or chemoradiation with temozolomide. The prognostic significance of marital status was assessed. Disease complications, toxicity, and treatment delivery were evaluated in detail. RESULTS Overall survival was significantly higher in married than in unmarried patients (median, 7.9 vs. 4.0 months; p = 0.006). The prognostic significance of marital status was preserved in the multivariate analysis (HR, 0.41; p = 0.011). Married patients could receive significantly higher daily temozolomide doses (mean, 53.7 mg/m² vs. 33.1 mg/m²; p = 0.020), were more likely to receive maintenance temozolomide (45.7 % vs. 11.8 %; p = 0.016), and had to be hospitalized less frequently during radiotherapy (55.0 % vs. 88.2 %; p = 0.016). Of the patients receiving temozolomide, married patients showed significantly lower rates of hematologic and liver toxicity. Most complications were infectious or neurologic in nature. Complications of any grade were more frequent in unmarried patients (58.8 % vs. 30.0 %; p = 0.041) with the incidence of grade 3-5 complications being particularly elevated (47.1 % vs. 15.0 %; p = 0.004). CONCLUSION We found poorer treatment delivery as well as an unexpected severe increase in toxicity and disease complications in elderly unmarried glioblastoma patients. Marital status may be an important predictive factor for clinical decision-making and should be addressed in further studies.
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Affiliation(s)
- Florian Putz
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany.
| | - Tobias Putz
- Professorship of Demography, University of Bamberg, Feldkirchenstraße 21, 96052, Bamberg, Germany
| | - Nicole Goerig
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Stefan Knippen
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Thomas Gryc
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Ilker Eyüpoglu
- Department of Neurosurgery, Friedrich-Alexander-University Erlangen-Nuremberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Karl Rössler
- Department of Neurosurgery, Friedrich-Alexander-University Erlangen-Nuremberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Friedrich-Alexander-University Erlangen-Nuremberg, Universitätsstraße 27, 91054, Erlangen, Germany
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Schreiner W, Gavrychenkova S, Dudek W, Lettmaier S, Rieker R, Fietkau R, Sirbu H. Pathologic complete response as independed prognostic factor after induction therapy followed by surgery in locally advanced non-small cell lung cancer. Zentralbl Chir 2016. [DOI: 10.1055/s-0036-1587558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Schreiner W, Dudek W, Lettmaier S, Gavrychenkova S, Rieker R, Fietkau R, Sirbu H. [Neoadjuvant Radiochemotherapy Followed by Curative Resection in Patients with Advanced Non-Small Cell Lung Cancer in Stage IIIA/IIIB: Prognostic Factors and Results]. Zentralbl Chir 2016; 141:323-9. [PMID: 27035568 DOI: 10.1055/s-0042-101558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The role of surgical lung resection following neo-adjuvant radio-chemotherapy (RCT) in patients with locally advanced non-small cell lung cancer (NSCLC) is yet not clearly defined. The aim of our study was to analyze the postoperative survival and to identify relevant prognostic factors. 46 patients underwent curative resections after neo-adjuvant RCT for locally advanced NSCLC (IIIA/IIIB) between February 2008 and February 2015. A retrospective data analysis regarding preoperative regression status, perioperative mortality, postoperative survival, patho-histological remission, relapse pattern and other prognostic factors was performed. A neo-adjuvant RCT with a median radiation dose of 50.4 [range, 45-60] Gy was performed in 44 (96 %) patients. Partial and/or complete regression was observed in 32 (70 %) patients. R0-resection was achieved in 44 (96 %) patients. The 30-day mortality was 4 % and the perioperative morbidity was 37 %. The overall and progression free 5-year survival rate was 47 % and respectively 45 % [in median 58 months]. The 5-year survival rate of 64 % in the "responder"-group was significantly better when compared with 24 % in the "non-responder"-group (p = 0.038). The tri-modality therapy improved the prognosis in patients with locally advanced NSCLC (stage IIIA/IIIB). The complete patho-histological remission is an important prognostic factor for better long term survival. Dividing the patients in "responder" and "non-responder" after neo-adjuvant RCT may have large therapeutically consequences in the future.
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Affiliation(s)
- W Schreiner
- Chirurgische Klinik, Thoraxchirurgische Abteilung, Universitätsklinikum der Friedrich-Alexander-Universität, Erlangen-Nürnberg, Deutschland
| | - W Dudek
- Chirurgische Klinik, Thoraxchirurgische Abteilung, Universitätsklinikum der Friedrich-Alexander-Universität, Erlangen-Nürnberg, Deutschland
| | - S Lettmaier
- Strahlenklinik, Universitätsklinikum der Friedrich-Alexander-Universität, Erlangen-Nürnberg, Deutschland
| | - S Gavrychenkova
- Chirurgische Klinik, Thoraxchirurgische Abteilung, Universitätsklinikum der Friedrich-Alexander-Universität, Erlangen-Nürnberg, Deutschland
| | - R Rieker
- Pathologisches Institut, Universitätsklinikum der Friedrich-Alexander-Universität, Erlangen-Nürnberg, Deutschland
| | - R Fietkau
- Strahlenklinik, Universitätsklinikum der Friedrich-Alexander-Universität, Erlangen-Nürnberg, Deutschland
| | - H Sirbu
- Chirurgische Klinik, Thoraxchirurgische Abteilung, Universitätsklinikum der Friedrich-Alexander-Universität, Erlangen-Nürnberg, Deutschland
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Steffens R, Semrau S, Lahmer G, Putz F, Lettmaier S, Eyüpoglu I, Buchfelder M, Fietkau R. Recurrent glioblastoma: who receives tumor specific treatment and how often? J Neurooncol 2016; 128:85-92. [PMID: 26907492 DOI: 10.1007/s11060-016-2079-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 02/15/2016] [Indexed: 02/08/2023]
Abstract
The recurrence of glioblastoma (rGBM) is inevitable and often short-term. Therefore, information on the prognosis and effectiveness of tumor-specific versus purely palliative approaches should be more in-depth than a mere list of available treatment options for patients in this situation. However, follow-up data on the course of the disease in unselected patient populations after completion of primary treatment are scarce. This single-center analysis investigated the rate and number of glioblastoma recurrences after initial radiotherapy in 189 consecutive GM patients, focusing on the incidence of early death and the frequency of tumor-specific treatment (TST) versus best-supportive care (BSC) as well as the outcomes for the different approaches. In 61 % of initial population first recurrence (rGBM) could be determined by histology or imaging. 47 % received TST. 58 % of the patients with rGBM and TST were diagnosed with a second recurrence. Up to five recurrences were treated. 35-45 % of patients died before undergoing imaging studies to confirm the next recurrence. Multivariate analysis identified male sex and KPS score as independent factors (p < 0.01) for the choice of TST over BSC. Median overall survival from the diagnosis of first recurrence was 267 days in the TST group versus 65 days in patients receiving BSC (p < 0.0001). Nearly half of all rGBM patients received second-line TST, but a remarkably high proportion died early. Gender and KPS played a role in the choice of TST over BSC for recurrence treatment.
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Affiliation(s)
- Rieke Steffens
- Department of Radiation Oncology, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstr. 27, 91054, Erlangen, Germany
| | - Sabine Semrau
- Department of Radiation Oncology, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstr. 27, 91054, Erlangen, Germany.
| | - Godehard Lahmer
- Department of Radiation Oncology, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstr. 27, 91054, Erlangen, Germany
| | - Florian Putz
- Department of Radiation Oncology, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstr. 27, 91054, Erlangen, Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstr. 27, 91054, Erlangen, Germany
| | - Ilker Eyüpoglu
- Department of Neurosurgery, University Hospital Erlangen, Schwabachanlage 6, Erlangen, 91054, Germany
| | - Michael Buchfelder
- Department of Neurosurgery, University Hospital Erlangen, Schwabachanlage 6, Erlangen, 91054, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, Friedrich Alexander University of Erlangen-Nuremberg, Universitätsstr. 27, 91054, Erlangen, Germany
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Haderlein M, Scherl C, Semrau S, Lettmaier S, Uter W, Neukam FW, Iro H, Agaimy A, Fietkau R. High-grade histology as predictor of early distant metastases and decreased disease-free survival in salivary gland cancer irrespective of tumor subtype. Head Neck 2016; 38 Suppl 1:E2041-8. [DOI: 10.1002/hed.24375] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2015] [Indexed: 12/27/2022] Open
Affiliation(s)
- Marlen Haderlein
- Department of Radiation Oncology; University Hospital of Erlangen; Erlangen Germany
| | - Claudia Scherl
- Department of Otorhinolaryngology; University Hospital of Erlangen; Erlangen Germany
| | - Sabine Semrau
- Department of Radiation Oncology; University Hospital of Erlangen; Erlangen Germany
| | - Sebastian Lettmaier
- Department of Radiation Oncology; University Hospital of Erlangen; Erlangen Germany
| | - Wolfgang Uter
- Department of Medical Informatics, Biometry and Epidemiology; Friedrich Alexander University of Erlangen-Nuremberg; Erlangen Germany
| | | | - Heinrich Iro
- Department of Otorhinolaryngology; University Hospital of Erlangen; Erlangen Germany
| | - Abbas Agaimy
- Institute of Pathology; University Hospital of Erlangen; Erlangen Germany
| | - Rainer Fietkau
- Department of Radiation Oncology; University Hospital of Erlangen; Erlangen Germany
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Stubbe F, Agaimy A, Ott O, Lettmaier S, Vassos N, Croner R, Hohenberger W, Fietkau R, Semrau S. Effective local control of advanced soft tissue sarcoma with neoadjuvant chemoradiotherapy and surgery: A single institutional experience. Cancer Radiother 2016; 20:6-13. [DOI: 10.1016/j.canrad.2015.05.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 04/22/2015] [Accepted: 05/29/2015] [Indexed: 01/25/2023]
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Schreiner W, Dudek W, Lettmaier S, Fietkau R, Sirbu H. Should salvage surgery be considered for local recurrence after definitive chemoradiation in locally advanced non-small cell lung cancer? J Cardiothorac Surg 2016; 11:9. [PMID: 26781697 PMCID: PMC4717585 DOI: 10.1186/s13019-016-0396-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 01/10/2016] [Indexed: 12/25/2022] Open
Abstract
Background Incidence of local relapse after definitive chemoradiation (>59 Gy) for locally advanced non-small-cell lung cancer (NSCLC) is high, irrespective of high dose radiation applied. Experience with salvage lung resections in patients with locally relapsed NSCLC after definitive chemoradiation is limited. We present our series of salvage lung resections for local NSCLC relapse after curative–intent chemoradiation for locally advanced tumor. Methods Nine consecutive patients with local tumor recurrence or persistence following definitive chemoradiation were reviewed. Kaplan-Meier analysis was used to assess patient survival. Results All patients received definitive radiation (median dose 66.2 Gy) with concurrent chemotherapy. Tumor stage prior to chemoradiation was IIIA in 8 patients and IV in 1. In 4 patients tumor invaded the chest wall, in 2 the spine and in 1 the aorta. Median interval between chemoradiation and salvage resection was 30.2 weeks. Nine patients underwent 9 resections (6 lobectomies, 1 bilobectomy, 1 pneumonectomy and 1 bi-segmentectomy). One death occurred on the 12th postoperative day. Median overall survival was 23 months; postoperative 3-year survival was 47 %. Median progression-free survival was 21 months. Conclusion Salvage lung resection for locally recurrent or persisted NSCLC in selected patients with locally advanced NSCLC following definitive chemoradiation is a worthwhile treatment option.
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Affiliation(s)
- Waldemar Schreiner
- Department of Thoracic Surgery, University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany.
| | - Wojciech Dudek
- Department of Thoracic Surgery, University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany.
| | - Sebastian Lettmaier
- Department of Radiation Oncology, University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany.
| | - Rainer Fietkau
- Department of Radiation Oncology, University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany.
| | - Horia Sirbu
- Department of Thoracic Surgery, University Hospital, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany.
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Lubgan D, Ziegaus A, Semrau S, Lambrecht U, Lettmaier S, Fietkau R. Effective local control of vertebral metastases by simultaneous integrated boost radiotherapy: preliminary results. Strahlenther Onkol 2014; 191:264-71. [PMID: 25395089 DOI: 10.1007/s00066-014-0780-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 10/30/2014] [Indexed: 01/16/2023]
Abstract
BACKGROUND The primary endpoint was to improve local tumour control of patients with metastatic spinal tumours by stereotactic body radiotherapy (SBRT) and dose escalation by simultaneous, integrated boost (PTV-boost). We used a whole vertebral body (PTV-elective) contouring approach. Secondary endpoints were severity of acute and chronic adverse effects and overall survival. METHODS In all, 33 patients with metastases of the vertebral column were treated at Erlangen University Hospital. SBRT was given in 12 or 10 fractions. The metastatic lesion (PTV-boost) received 3.6 Gy (range 3.0-4.51 Gy) per fraction for a total of 42.0 Gy (24.36-48.0 Gy) and the whole vertebra (PTV-elective) received 2.85 Gy (range 1.8-3.6 Gy) per fraction for a total of 32.39 Gy (range 21.60-38.0 Gy). Patients were followed up every 3 months. RESULTS Local control rate of all patients was 93% at 12 and 24 months. The overall survival rate was 54% at 12 months, 38% at 24 months and 18% at 36 months. No radiation myelopathy occurred. The most frequently observed adverse events in 3 cases was oesophagitis grade 2. CONCLUSION SBRT with simultaneous, integrated boost was associated with excellent local control of 93% after 24 months. This result shows the possibility of delivering escalated doses to the target while still keeping the incidence of side effects low. This study forms the basis for a future randomised controlled trial comparing conventional radiotherapy (10 fractions of 3 Gy) with hypofractionated dose intensified SBRT (12 fractions of 3 Gy + integrated boost 12 fractions of 4 Gy) for improvement of local tumour control and pain.
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Affiliation(s)
- Dorota Lubgan
- Department of Radiation Oncology, Erlangen University Hospital, Universitätsstraße 27, 91054, Erlangen, Germany,
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Lettmaier S, Lotter M, Kreppner S, Strnad A, Fietkau R, Strnad V. Long term results of a prospective dose escalation phase-II trial: interstitial pulsed-dose-rate brachytherapy as boost for intermediate- and high-risk prostate cancer. Radiother Oncol 2012; 104:181-6. [PMID: 22853851 DOI: 10.1016/j.radonc.2012.07.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Revised: 07/09/2012] [Accepted: 07/11/2012] [Indexed: 11/29/2022]
Abstract
PURPOSE We reviewed our seven year single institution experience with pulsed dose rate brachytherapy dose escalation study in patients with intermediate and high risk prostate cancer. MATERIALS AND METHODS We treated a total of 130 patients for intermediate and high risk prostate cancer at our institution between 2000 and 2007 using PDR-brachytherapy as a boost after conformal external beam radiation therapy to 50.4 Gy. The majority of patients had T2 disease (T1c 6%, T2 75%, T3 19%). Seventy three patients had intermediate-risk and 53 patients had high-risk disease according to the D'Amico classification. The dose of the brachytherapy boost was escalated from 25 to 35 Gy - 33 pts. received 25 Gy (total dose 75 Gy), 63 pts. 30 Gy (total dose 80 Gy) and 34 pts. 35 Gy, (total dose 85 Gy) given in one session (dose per pulse was 0.60 Gy or 0.70 Gy/h, 24h per day, night and day, with a time interval of 1h between two pulses). PSA-recurrence-free survival according to Kaplan-Meier using the Phoenix definition of biochemical failure was calculated and also late toxicities according to Common Toxicity Criteria scale were assessed. RESULTS At the time of analysis with a median follow-up of 60 months biochemical control was achieved by 88% of patients - only 16/130 patients (12.3%) developed a biochemical relapse. Biochemical relapse free survival calculated according to Kaplan-Meier for all patients at 5 years was 85.6% (83.9% for intermediate-risk patients and 84.2% for high-risk patients) and at 9 years' follow up it was 79.0%. Analysing biochemical relapse free survival separately for different boost dose levels, at 5 years it was 97% for the 35 Gy boost dose and 82% for the 25 and 30 Gy dose levels. The side effects of therapy were negligible: There were 18 cases (15%) of grade 1/2 rectal proctitis, one case (0.8%) of grade 3 proctitis, 18 cases (15%) of grade 1/2 cystitis, and no cases (0%) with dysuria grade 3. No patient had a bulbourethral stricture requiring dilation or new onset incontinence. CONCLUSIONS Image-guided conformal PDR-brachytherapy using up to 35 Gy as boost dose after 50 Gy of external beam radiation therapy (total dose up to 85 Gy) is a very effective treatment option with very low morbidity in patients with intermediate or high risk prostate cancer. Further dose escalation seems possible.
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Lettmaier S, Kreppner S, Lotter M, Fietkau R, Strnad V. PO-177 HISTOSCANNING BASED DOSE ESCALATION FOR PROSTATE CANCER AS MICROBOOST USING BRACHYTHERAPY – A PHASE II-TRIAL. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)72143-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lettmaier S, Kreppner S, Lotter M, Walser M, Ott OJ, Fietkau R, Strnad V. Radiation exposure of the heart, lung and skin by radiation therapy for breast cancer: A dosimetric comparison between partial breast irradiation using multicatheter brachytherapy and whole breast teletherapy. Radiother Oncol 2011; 100:189-94. [DOI: 10.1016/j.radonc.2010.07.011] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2010] [Revised: 07/09/2010] [Accepted: 07/09/2010] [Indexed: 11/26/2022]
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Strnad V, Lettmaier S, Lotter M, Kreppner S, Strnad A, Fietkau R. 227 oral LONG TERM RESULTS OF A PROSPECTIVE DOSE ESCALATION PHASE-II TRIAL: INTERSTITIAL PDR-BRACHYTHERAPY AS BOOST FOR INTERMEDIATE-AND HIGH-RISK PROSTATE CANCER. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)70349-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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