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Savagner J, Ducassou A, Cabarrou B, Hangard G, Gambart M, Bertozzi AI, Baudou E, Boetto S, Larrieu D, Laprie A. Helical tomotherapy craniospinal irradiation in primary brain tumours: Toxicities and outcomes in a peadiatric and adult population. Clin Transl Radiat Oncol 2024; 46:100777. [PMID: 38628594 PMCID: PMC11019098 DOI: 10.1016/j.ctro.2024.100777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 03/30/2024] [Accepted: 04/04/2024] [Indexed: 04/19/2024] Open
Abstract
Objective As craniospinal irradiation (CSI) is delivered more frequently by helical tomotherapy (HT) with few reports about late effects, we analysed all patients treated in our centre over an 11-year period. Methods and materials Our study included all patients that underwent CSI by HT, between September 2009 and January 2020, in the Department of Radiation Oncology of the Toulouse Cancer Institute. Acute radiotherapy toxicities were reported and medium- to long-term outcomes analysed. Results Among the 79 patients included, 70.9 % were younger than 18 years at diagnosis, the median age was 13 (range: 1-52) at the time of radiation therapy, 67.1 % of patients had medulloblastoma. Half of them (49.4 %) had a metastatic disease at diagnosis. The median dose of CSI was 36 Gy (range, 18-36). Seventy-seven patients received a radiation boost to the original location of the primary tumour (97.5 %), 32 patients also received a boost to their metastatic sites (40.5 %). Median follow-up was 55.5 months (95 %CI = [41.2; 71.8]). The 3-year event-free survival rate was 66.3 % (95 %CI = [54.2; 75.9]). Most patients presented with acute haematological toxicities during CSI (85.9 %), predominantly severe thrombocytopenia (39.7 %). Among the 64 patients assessed for medium- and long-term outcomes, 52 survived and 47 were alive and disease-free at the latest follow-up visit on record. There were 3.8 % secondary tumours: two meningiomas and one diffuse intrinsic pontine glioma. Adult and paediatric patients respectively presented with secondary cataract (4.3 % vs 22.0 %), persistent hearing disorders (26.1 % vs 29.3 %), pulmonary or cardiac late effects (4.3 % vs 2.4 %), hormonal pituitary gland deficiencies (30.0 % vs 56.8 %) and psycho-cognitive disorders (56.5 % vs 53.7 %). Conclusion CSI dispensed by HT, did not result in any additional acute or late toxicities when compared to 3D-CSI. There was no increase in the secondary tumour rate compared to that reported in the literature.
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Affiliation(s)
- Julie Savagner
- Department of Paediatric Neurology, Children’s Hospital of Toulouse, 330 Avenue de Grande Bretagne, 31300 Toulouse, France
| | - Anne Ducassou
- Department of Radiation Oncology, Toulouse Cancer Institute (IUCT), 1 avenue Irene Joliot-Curie, 31100 Toulouse, France
| | - Bastien Cabarrou
- Department of Biostatistics, Toulouse Cancer Institute (IUCT), 1 avenue Irene Joliot-Curie, 31100 Toulouse, France
| | - Gregory Hangard
- Department of Radiation Oncology, Toulouse Cancer Institute (IUCT), 1 avenue Irene Joliot-Curie, 31100 Toulouse, France
| | - Marion Gambart
- Department of Paediatric Oncology, Children’s Hospital of Toulouse, 330 Avenue de Grande Bretagne, 31300 Toulouse, France
| | - Anne-Isabelle Bertozzi
- Department of Paediatric Oncology, Children’s Hospital of Toulouse, 330 Avenue de Grande Bretagne, 31300 Toulouse, France
| | - Eloise Baudou
- Department of Paediatric Neurology, Children’s Hospital of Toulouse, 330 Avenue de Grande Bretagne, 31300 Toulouse, France
| | - Sergio Boetto
- Department of Neurosurgery, Toulouse University Hospital, Pierre-Paul Riquet Hospital, Place du Docteur Baylac, Toulouse, France
| | - Delphine Larrieu
- Department of Oncology, Toulouse Cancer Institute (IUCT), 1 avenue Irene Joliot-Curie, 31100 Toulouse, France
| | - Anne Laprie
- Department of Radiation Oncology, Toulouse Cancer Institute (IUCT), 1 avenue Irene Joliot-Curie, 31100 Toulouse, France
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Turcas A, Kelly SM, Clementel E, Cernea D. Tomotherapy for Cranio-Spinal Irradiation. Clin Transl Radiat Oncol 2022; 38:96-103. [PMID: 36407491 PMCID: PMC9672131 DOI: 10.1016/j.ctro.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/30/2022] [Accepted: 11/05/2022] [Indexed: 11/13/2022] Open
Abstract
Tomotherapy is safe and effective for cranio-spinal irradiation, both in paediatric patients and in adults, with similar disease-specific outcomes and toxicities as other techniques such as 3DCRT or IMRT/VMAT. Tomotherapy offers several technical advantages when compared to other radiotherapy techniques such as higher target conformity and better dose homogeneity. Helical Tomotherapy provides good organ-at-risk sparing for several structures, especially the vertebrae, parotids, and optic system. Reported treatment time/ beam-on-time is longer with helical Tomotherapy compared to other techniques.
Tomotherapy is a method of delivering rotational IMRT offering various advantages, notably for complex and large targets such as the cranio-spinal axis. This systematic literature review reports on main clinical outcomes and toxicities in patients with various cancer types that received whole craniospinal axis irradiation (CSI) using Tomotherapy and offers a comprehensive comparison between Tomotherapy and other radiotherapy delivery techniques. Databases including PubMed, PubMed Central, Embase, and Cochrane were searched using the keywords “tomotherapy” AND “craniospinal”. Fifty-six papers were included in the review. Patient population was adult in 9 papers, paediatric in 26 papers and mixed in 14 papers. Patients treated with helical Tomotherapy had similar disease-specific clinical outcomes and toxicities as patients treated using other techniques. Compared to any other technique, Tomotherapy provides better target coverage, homogeneity, and conformity in 23, 34 and 22 reports. Tomotherapy showed better organ-at-risk sparing for the thyroid, parotids, cochlea, eyes, heart and esophagus. Beam-On-Time (BOT) was reported to be longer for Tomotherapy in most studies (Median BOT: HT = 11 min, VMAT = 5.49 min, 3DCRT = 1.46 min). In conclusion, Tomotherapy offers good cranio-spinal axis coverage with improved homogeneity and conformity compared to other techniques, but with a considerably longer treatment time. Clinical outcome and toxicities suggest using Tomotherapy for CSI is efficient and safe.
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Pediatric radiotherapy for thoracic and abdominal targets: organ motion, reported margin sizes, and delineation variations – a systematic review. Radiother Oncol 2022; 173:134-145. [DOI: 10.1016/j.radonc.2022.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 05/09/2022] [Accepted: 05/26/2022] [Indexed: 11/21/2022]
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Li N, Bian Z, Cong M, Liu Y. Survival Outcomes of Patients With Epidermal Growth Factor Receptor Mutations in Non-Small Cell Lung Cancer With Leptomeningeal Metastasis. Front Oncol 2022; 11:723562. [PMID: 35127465 PMCID: PMC8811957 DOI: 10.3389/fonc.2021.723562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 11/01/2021] [Indexed: 12/13/2022] Open
Abstract
BackgroundLeptomeningeal metastasis (LM) is a commonly observed complication in patients with epidermal growth factor receptor (EGFR)-mutated non-small cell lung cancer (NSCLC). This study aimed to investigate the gene mutations, treatment strategies, and clinical outcomes in patients with LM.MethodsWe retrospectively analyzed the clinical and survival outcomes of 53 patients with EGFR-mutated NSCLC with LM.ResultsThe median overall survival after LM diagnosis was 13.0 months, ranging from 0.5 to 42.0 months (95% CI = 9.067–16.933), with 64.2% maturity. Patients who received osimertinib after developing LM (n = 35) had a significantly higher rate of LM disease control (p = 0.008) and significantly longer overall survival (15.0 versus 6.0 months; hazard ratio (HR), 2.4292; 95% CI, 1.234–4.779; p = 0.045) than those who received previous generations of EGFR tyrosine kinase inhibitors (TKIs) or other localized therapies (n = 6). Logistic regression analysis showed that LM disease control status was a positive predictive factor for overall survival after developing LM (p < 0.001, odds ratio = 10.797, 95% CI = 4.102–28.419).ConclusionsOur study provides real-world clinical evidence that patients with EGFR-mutated NSCLC diagnosed with LM who developed LM had better clinical outcomes with osimertinib therapy. Our findings also suggest that LM disease control is the most effective strategy to prolong the overall survival outcomes of these patients.
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Affiliation(s)
- Ning Li
- Department of Comprehensive Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Zhimin Bian
- Department of Comprehensive Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Minghua Cong
- Department of Comprehensive Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- *Correspondence: Yutao Liu, ; Minghua Cong,
| | - Yutao Liu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- *Correspondence: Yutao Liu, ; Minghua Cong,
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Takaoka T, Tomita N, Shido Y, Baba S, Fukushima M, Sugie C, Shibamoto Y. Radiotherapy for a rare phosphaturic mesenchymal tumor in the middle ear presenting with oncogenic osteomalacia: A case report. Medicine (Baltimore) 2021; 100:e27284. [PMID: 34559137 PMCID: PMC8462650 DOI: 10.1097/md.0000000000027284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/02/2021] [Indexed: 01/05/2023] Open
Abstract
RATIONALE Phosphaturic mesenchymal tumor (PMT) is a rare neoplasm causing oncogenic osteomalacia. Surgery remains the definitive treatment for PMT, and radiotherapy is seldom employed. However, surgery for PMT involving the head and neck is often difficult due to the local invasion and complicated anatomy. We report the first case of PMT, which was successfully treated with the combination of radiotherapy and supplementation of activated vitamin D. PATIENT CONCERNS A 55-year-old woman suffered from pain in the hip and bilateral femur. Serum phosphate and calcium decreased to abnormal levels. Serum alkaline phosphatase and fibroblast growth factor 23 increased to abnormal levels. The hearing loss of the right ear had continued and a middle ear tumor was revealed. DIAGNOSES Subsequent biopsy provided the diagnosis of PMT that caused oncogenic osteomalacia. These clinical and pathological characteristics were consistent with and provided the final diagnosis of benign PMT. INTERVENTIONS Surgery of the PMT was difficult and the patient underwent radiotherapy. The prescribed dose was 36 Gy in 10 fractions. Simultaneously, the patient started supplementation of 1,25-dihydroxyvitamin D3 (1-2 μg/day) and continued for 2 years. OUTCOMES Near-complete resolution of the symptoms was achieved and abnormal laboratory values recovered. At 5 years of follow-up, the irradiated tumor showed no regrowth. Severe hearing loss of the right ear was not observed. LESSONS Radiotherapy was effective for the PMT and could be an important treatment option for inoperable cases.
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Affiliation(s)
- Taiki Takaoka
- Department of Radiation Oncology, Narita Memorial Proton Center, Toyohashi, Japan
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Natsuo Tomita
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yoji Shido
- Department of Orthopedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Satoshi Baba
- Department of Diagnostic Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Mayu Fukushima
- Department of Diagnostic Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Chikao Sugie
- Department of Radiology, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Japan
| | - Yuta Shibamoto
- Department of Radiation Oncology, Narita Memorial Proton Center, Toyohashi, Japan
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Liu IC, Holtzman AL, Rotondo RL, Indelicato DJ, Gururangan S, Cavaliere R, Carter B, Morris CG, Tavanaiepour D, Rutenberg MS. Proton therapy for adult medulloblastoma: Acute toxicity and disease control outcomes. J Neurooncol 2021; 153:467-476. [PMID: 34105033 DOI: 10.1007/s11060-021-03783-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/03/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE We report disease control, survival outcomes, and treatment-related toxicity among adult medulloblastoma patients who received proton craniospinal irradiation (CSI) as part of multimodality therapy. METHODS We reviewed 20 adults with medulloblastoma (≥ 22 years old) who received postoperative proton CSI ± chemotherapy between 2008 and 2020. Patient, disease, and treatment details and prospectively obtained patient-reported acute CSI toxicities were collected. Acute hematologic data were analyzed. RESULTS Median age at diagnosis was 27 years; 45% of patients had high-risk disease; 75% received chemotherapy, most (65%) after CSI. Eight (40%) patients received concurrent vincristine with radiotherapy. Median CSI dose was 36GyE with a median tumor bed boost of 54GyE. Median duration of radiotherapy was 44 days. No acute ≥ grade 3 gastrointestinal or hematologic toxicities attributable to CSI occurred. Grade 2 nausea and vomiting affected 25% and 5% of patients, respectively, while 36% developed acute grade 2 hematologic toxicity (36% grade 2 leukopenia and 7% grade 2 neutropenia). Those receiving concurrent chemotherapy with CSI had a 38% rate of grade 2 hematologic toxicity compared to 33% among those not receiving concurrent chemotherapy. Among patients receiving adjuvant chemotherapy (n = 13), 100% completed ≥ 4 cycles and 85% completed all planned cycles. With a median follow-up of 3.1 years, 4-year actuarial local control, disease-free survival, and overall survival rates were 90%, 90%, and 95%, respectively. CONCLUSIONS Proton CSI in adult medulloblastoma patients is very well tolerated and shows promising disease control and survival outcomes. These data support the standard use of proton CSI for adult medulloblastoma.
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Affiliation(s)
- I-Chia Liu
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, 2015 North Jefferson Street, Jacksonville, FL, 32206, USA
| | - Adam L Holtzman
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, 2015 North Jefferson Street, Jacksonville, FL, 32206, USA
| | - Ronny L Rotondo
- Department of Radiation Oncology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Daniel J Indelicato
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, 2015 North Jefferson Street, Jacksonville, FL, 32206, USA
| | - Sridharan Gururangan
- Department of Neurosurgery and the Preston A. Wells Jr. Center for Brain Tumor Therapy, University of Florida College of Medicine, Gainesville, FL, USA
| | | | - Bridgette Carter
- University of Florida Health Proton Therapy Institute, Jacksonville, FL, USA
| | - Christopher G Morris
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, 2015 North Jefferson Street, Jacksonville, FL, 32206, USA
| | - Daryoush Tavanaiepour
- Department of Neurosurgery, University of Florida College of Medicine Jacksonville, Jacksonville, FL, USA
| | - Michael S Rutenberg
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville, 2015 North Jefferson Street, Jacksonville, FL, 32206, USA.
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Maillie L, Salgado LR, Lazarev S. A systematic review of craniospinal irradiation for leptomeningeal disease: past, present, and future. Clin Transl Oncol 2021; 23:2109-2119. [PMID: 33881707 DOI: 10.1007/s12094-021-02615-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 03/30/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE Leptomeningeal disease (LMD) is a rare but deadly complication of cancer in which the disease spreads to the cerebrospinal fluid and seeds the meninges of the central nervous system (CNS). Craniospinal irradiation (CSI) involves treatment of the entire CNS subarachnoid space and is occasionally used as a last-resort palliative therapy for LMD. METHODS This review examined literature describing the role of CSI for LMD from solid and hematologic malignancies in adults. A search for studies published until September 1, 2020 was conducted using PubMed database. RESULTS A total of 262 unique articles were identified. Thirteen studies were included for analysis in which a total of 275 patients were treated with CSI for LMD. Median age at time of irradiation was 43 years, and most patients had KPS score of 70 and higher. The most common cancers resulting in LMD were acute lymphocytic leukemia, breast cancer, and acute myelogenous leukemia. Median CSI dose was 30 Gy and 18% of patients were treated with proton radiation. 52% of patients had stable-to-improved neurologic symptoms. Median overall survival for the entire cohort was 5.3 months. Patients treated with marrow-sparing proton radiation had median OS of 8 months. The most common treatment toxicities were hematologic and gastrointestinal events. CONCLUSIONS Despite advances in systemic and radiation therapies, LMD remains a devastating end-stage complication of some malignancies. Treatment-related toxicities can be a significant barrier to CSI delivery. In select patients with LMD, marrow-sparing proton CSI may provide safer palliation of symptoms and prolong survival.
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Affiliation(s)
- L Maillie
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - L R Salgado
- Department of Radiation Oncology, Elmhurst Hospital, New York, NY, USA
| | - S Lazarev
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,New York Proton Center, New York, NY, USA.
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O'Connor CA, Park JS, Kaley T, Kezlarian B, Edelweiss M, Yang TJ, Park W, Reidy D, Varghese AM, Yu KH, O'Reilly EM. Leptomeningeal disease in pancreas ductal adenocarcinoma: A manifestation of longevity. Pancreatology 2021; 21:599-605. [PMID: 33582005 PMCID: PMC8611374 DOI: 10.1016/j.pan.2021.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND /Objectives: Pancreatic adenocarcinoma (PDAC) metastatic to the leptomeninges is a rare and lethal event. Leptomeningeal disease (LMD) research is limited in PDAC, and insights into clinical descriptors, possible disease predictors, and treatment strategies is necessitated. METHODS Memorial Sloan Kettering databases were queried with Institutional Review Board approval to identify patients with LMD and PDAC treated between January 2000 and June 2020. Medical record review was used to abstract clinical, genomic, pathologic, and radiographic data. Overall survival was calculated from date of PDAC diagnosis to date of death. Previously published literature on LMD from PDAC was reviewed. RESULTS Four patients with LMD from PDAC were identified, two males and two females. Age at diagnosis ranged from 57 to 68 years. All four patients had predominant lung metastasis and a relatively low burden of intra-abdominal disease. Somatic testing indicated alterations typical of PDAC and no PDAC defining pathogenic germline mutations were identified. An extended clinical course prior to LMD diagnosis was observed in all patients, ranging from 16 to 148 months. Upon diagnosis of LMD, three patients elected for supportive care and one patient received a limited course of craniospinal radiation. The median survival following diagnosis of LMD was 1.6 months (range 0.5-2.8 months). CONCLUSIONS LMD from PDAC is a rare occurrence that may be more frequent in patients with lung metastasis and/or a more indolent clinical course. Following diagnosis of LMD, prognosis is poor, and survival is short. New treatment strategies for this manifestation of PDAC are needed.
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Affiliation(s)
| | - Jennifer S Park
- Department of Medicine, Memorial Sloan Kettering Cancer Center, USA
| | - Thomas Kaley
- Department of Neurology, Memorial Sloan Kettering Cancer Center, USA
| | - Brie Kezlarian
- Department of Pathology, Memorial Sloan Kettering Cancer Center, USA
| | - Marcia Edelweiss
- Department of Pathology, Memorial Sloan Kettering Cancer Center, USA
| | - T Jonathan Yang
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, USA
| | - Wungki Park
- Department of Medicine, Memorial Sloan Kettering Cancer Center, USA; Department of Medicine, Weill Cornell Medical College, USA; David M. Rubenstein Center for Pancreas Cancer Research, USA
| | - Diane Reidy
- Department of Medicine, Memorial Sloan Kettering Cancer Center, USA; Department of Medicine, Weill Cornell Medical College, USA; David M. Rubenstein Center for Pancreas Cancer Research, USA
| | - Anna M Varghese
- Department of Medicine, Memorial Sloan Kettering Cancer Center, USA; Department of Medicine, Weill Cornell Medical College, USA; David M. Rubenstein Center for Pancreas Cancer Research, USA
| | - Kenneth H Yu
- Department of Medicine, Memorial Sloan Kettering Cancer Center, USA; Department of Medicine, Weill Cornell Medical College, USA; David M. Rubenstein Center for Pancreas Cancer Research, USA
| | - Eileen M O'Reilly
- Department of Medicine, Memorial Sloan Kettering Cancer Center, USA; Department of Medicine, Weill Cornell Medical College, USA; David M. Rubenstein Center for Pancreas Cancer Research, USA.
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A novel inverse optimization based three-dimensional conformal radiotherapy technique in craniospinal irradiation. Phys Eng Sci Med 2021; 44:265-275. [PMID: 33559040 DOI: 10.1007/s13246-021-00976-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 01/15/2021] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Abstract
Our aim was to develop a novel inverse optimization-based three-dimensional conformal radiotherapy (i3DCRT) technique for craniospinal irradiation. The imaging data of 20 patients with medulloblastoma were used retrospectively. The first group included 10 pediatric patients with supine position treated under anesthesia/sedation, and the second group included 10 young adult/adult patients treated with prone position. Three different treatment plans were created for each patient via i3DCRT, forward-planned three-dimensional conformal radiotherapy (f3DCRT) and intensity-modulated radiotherapy (IMRT) techniques. A total dose of 36 Gy was prescribed in 20 fractions for all plans. The comparative evaluation was conducted by using the parameters of conformity-index, homogeneity-index, and doses to the target volumes and organs at risk (OARs). The plans created with i3DCRT technique achieved better conformity and homogeneity compared to f3DCRT. In terms of OARs sparing, we found pronounced dose reductions in esophagus and heart in i3DCRT compared to f3DCRT plans. i3DCRT technique also provided a well-conformed dose distribution not superior, but comparable, to IMRT without increase in the total monitor unit per fraction (MU/fx) with respect to f3DCRT. The average monitor unit per fraction (MU/fx) for i3DCRT, f3DCRT and IMRT plans were found as 379.3, 378.0 and 1051.7 MU for the first group and 577.4, 563.5 and 1368.7 MU for the second group, respectively. Novel i3DCRT technique solves the problems associated with field junctions and beam edge matching encountered in f3DCRT plans. Additionally, i3DCRT technique can create almost similar plans as with IMRT with lower total MU/fx.
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Öztunali A, Elsayad K, Scobioala S, Channaoui M, Haverkamp U, Grauer O, Sträter R, Brentrup A, Stummer W, Kerl K, Eich HT. Toxicity Reduction after Craniospinal Irradiation via Helical Tomotherapy in Patients with Medulloblastoma: A Unicentric Retrospective Analysis. Cancers (Basel) 2021; 13:cancers13030501. [PMID: 33525583 PMCID: PMC7865289 DOI: 10.3390/cancers13030501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 11/16/2022] Open
Abstract
Objectives: Recent trials with craniospinal irradiation (CSI) via helical Tomotherapy (HT) demonstrated encouraging medulloblastoma results. In this study, we assess the toxicity profile of different radiation techniques and estimate survival rates. Materials and Methods: We reviewed the records of 46 patients who underwent irradiation for medulloblastoma between 1999 and 2019 (27 conventional radiotherapy technique (CRT) and 19 HT). Patient, tumor, and treatment characteristics, as well as treatment outcomes-local control rate (LCR), event-free survival (EFS), and overall survival (OS)-were reviewed. Acute and late adverse events (AEs) were evaluated according to the Radiation Therapy Oncology Group and the European Organization for Research and Treatment of Cancer (RTOG/EORTC) criteria. Results: In total, 43 courses of CSI and three local RT were administered to the 46 patients: 30 were male, the median age was 7 years (range 1-56). A median total RT dose of 55 Gy (range 44-68) and a median CSI dose of 35 Gy (range, 23.4-40) was delivered. During follow-up (median, 99 months), six patients (13%) developed recurrence. The EFS rate after 5 years was 84%. The overall OS rates after 5 and 10 years were 95% and 88%, respectively. There were no treatment-related deaths. Following HT, a trend towards lower grade 2/3 acute upper gastrointestinal (p = 0.07) and subacute CNS (p = 0.05) toxicity rates was detected compared to CRT-group. The risk of late CNS toxicities, mainly grade 2/3, was significantly lower following HT technique (p = 0.003). Conclusion: CSI via HT is an efficacious treatment modality in medulloblastoma patients. In all, we detected a reduced rate of several acute, subacute, and chronic toxicities following HT compared to CRT.
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Affiliation(s)
- Anil Öztunali
- Radiation Oncology Department, University Hospital Muenster, 48149 Muenster, Germany; (A.Ö.); (S.S.); (M.C.); (U.H.); (H.T.E.)
| | - Khaled Elsayad
- Radiation Oncology Department, University Hospital Muenster, 48149 Muenster, Germany; (A.Ö.); (S.S.); (M.C.); (U.H.); (H.T.E.)
- Correspondence: ; Tel.: +49-0-2518347384
| | - Sergiu Scobioala
- Radiation Oncology Department, University Hospital Muenster, 48149 Muenster, Germany; (A.Ö.); (S.S.); (M.C.); (U.H.); (H.T.E.)
| | - Mohammed Channaoui
- Radiation Oncology Department, University Hospital Muenster, 48149 Muenster, Germany; (A.Ö.); (S.S.); (M.C.); (U.H.); (H.T.E.)
| | - Uwe Haverkamp
- Radiation Oncology Department, University Hospital Muenster, 48149 Muenster, Germany; (A.Ö.); (S.S.); (M.C.); (U.H.); (H.T.E.)
| | - Oliver Grauer
- Neuro-Oncology Department, University Hospital Muenster, 48149 Muenster, Germany;
| | - Ronald Sträter
- Pediatric Oncology Department, University Hospital Muenster, 48149 Muenster, Germany; (R.S.); (K.K.)
| | - Angela Brentrup
- Department of Neurosurgery, University Hospital Muenster, 48149 Muenster, Germany; (A.B.); (W.S.)
| | - Walter Stummer
- Department of Neurosurgery, University Hospital Muenster, 48149 Muenster, Germany; (A.B.); (W.S.)
| | - Kornelius Kerl
- Pediatric Oncology Department, University Hospital Muenster, 48149 Muenster, Germany; (R.S.); (K.K.)
| | - Hans Theodor Eich
- Radiation Oncology Department, University Hospital Muenster, 48149 Muenster, Germany; (A.Ö.); (S.S.); (M.C.); (U.H.); (H.T.E.)
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Sepulveda E, Patrick H, Freeman CR, Kildea J. Implementation of a DVH Registry to provide constraints and continuous quality monitoring for pediatric CSI treatment planning. J Appl Clin Med Phys 2020; 22:191-202. [PMID: 33315306 PMCID: PMC7856485 DOI: 10.1002/acm2.13131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/13/2020] [Accepted: 11/22/2020] [Indexed: 11/08/2022] Open
Abstract
Craniospinal irradiation (CSI) is a complex radiation therapy technique that is used for patients, often children and teenagers/young adults, with tumors that have a propensity to spread throughout the central nervous system such as medulloblastoma. CSI is associated with important long‐term side effects, the risk of which may be affected by numerous factors including radiation modality and technique. Lack of standardization for a technique that is used even in larger radiation oncology departments only a few times each year may be one such factor and the current ad hoc manner of planning new CSI patients may be greatly improved by implementing a dose–volume histogram registry (DVHR) to use previous patient data to facilitate prospective constraint guidance for organs at risk. In this work, we implemented a DVHR and used it to provide standardized constraints for CSI planning. Mann–Whitney U tests and mean differences at 95% confidence intervals were used to compare two cohorts (pre‐ and post‐DVHR intervention) at specific dosimetric points to determine if observed improvements in standardization were statistically significant. Through this approach, we have shown that the implementation of dosimetric constraints based on DVHR‐derived data helped improve the standardization of pediatric CSI planning at our center. The DVHR also provided guidance for a change in CSI technique, helping to achieve practice standardization across TomoTherapy and IMRT.
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Affiliation(s)
- Esteban Sepulveda
- Medical Physics Unit, Department of Physics, McGill University, Montréal, Canada
| | - Haley Patrick
- Medical Physics Unit, Department of Physics, McGill University, Montréal, Canada
| | - Carolyn R Freeman
- Division of Radiation Oncology, Department of Oncology, McGill University, Montréal, Canada
| | - John Kildea
- Medical Physics Unit, Department of Physics, McGill University, Montréal, Canada
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12
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Dosimetric comparison of integral dose for different techniques of craniospinal irradiation. JOURNAL OF RADIOTHERAPY IN PRACTICE 2020. [DOI: 10.1017/s1460396920000424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AbstractAim:Comparison of the integral dose (ID) delivered to organs at risk (OAR), non-target body and target body by using different techniques of craniospinal irradiation (CSI).Materials and methods:Ten CSI patients (medulloblastoma) already planned and treated either with linear accelerator three-dimensional conformal radiation therapy (Linac-3DCRT) technique or with linear accelerator RapidArc (Linac-RapidArc) technique by Novalis-Tx Linac machine have been analysed. Retrospectively, these patients are again planned on Radixact-X9 Linac with Helical, Direct-3DCRT and Direct-intensity-modulated radiation therapy (Direct-IMRT) techniques. The dose prescription to planning target volume brain (PTV-Brain) and PTV-Spine is 36 Gy in 20 fractions and is kept the same for all techniques. The target body, non-target body, OARs and total body dose are compared.Results:ID is lowest in the RapidArc plan for every patient in comparison to Helical and Direct-IMRT. The ID for Body-PTV was found slightly higher in the RapidArc plan in comparison to 3DCRT plans. But there is better normal tissue sparing for most of the OARs in RapidArc plans if it compares with 3DCRT plans.Findings:RapidArc is a better alternative for the treatment of CSI. It provides better target coverage and better OARs sparing from any other treatment techniques.
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13
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Devecka M, Duma MN, Wilkens JJ, Kampfer S, Borm KJ, Münch S, Straube C, Combs SE. Craniospinal irradiation(CSI) in patients with leptomeningeal metastases: risk-benefit-profile and development of a prognostic score for decision making in the palliative setting. BMC Cancer 2020; 20:501. [PMID: 32487151 PMCID: PMC7268696 DOI: 10.1186/s12885-020-06984-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 05/20/2020] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND The aim of our study was to assess the feasibility and oncologic outcomes in patients treated with spinal (SI) or craniospinal irradiation (CSI) in patients with leptomeningeal metastases (LM) and to suggest a prognostic score as to which patients are most likely to benefit from this treatment. METHODS Nineteen patients treated with CSI at our institution were eligible for the study. Demographic data, primary tumor characteristics, outcome and toxicity were assessed retrospectively. The extent of extra-CNS disease was defined by staging CT-scans before the initiation of CSI. Based on outcome parameters a prognostic score was developed for stratification based on patient performance status and tumor staging. RESULTS Median follow-up and overall survival (OS) for the whole group was 3.4 months (range 0.5-61.5 months). The median overall survival (OS) for patients with LM from breast cancer was 4.7 months and from NSCLC 3.3 months. The median OS was 7.3 months, 3.3 months and 1.5 months for patients with 0, 1 and 2 risk factors according to the proposed prognostic score (KPS < 70 and the presence of extra-CNS disease) respectively. Nonhematologic toxicities were mild. CONCLUSION CSI demonstrated clinically meaningful survival that is comparable to the reported outcome of intrathecal chemotherapy. A simple scoring system could be used to better select patients for treatment with CSI in this palliative setting. In our opinion, the feasibility of performing CSI with modern radiotherapy techniques with better sparing of healthy tissue gives a further rationale for its use also in the palliative setting.
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Affiliation(s)
- Michal Devecka
- Klinikum rechts der Isar, Department of RadiationOncology, Technical University Munich, Ismaninger Strasse 22, 81675, München, Germany.
| | - Marciana Nona Duma
- Klinikum rechts der Isar, Department of RadiationOncology, Technical University Munich, Ismaninger Strasse 22, 81675, München, Germany.,Department of Radiotherapy and Radiation Oncology, University Hospital of the Friedrich Schiller University, Jena, Germany
| | - Jan J Wilkens
- Klinikum rechts der Isar, Department of RadiationOncology, Technical University Munich, Ismaninger Strasse 22, 81675, München, Germany
| | - Severin Kampfer
- Klinikum rechts der Isar, Department of RadiationOncology, Technical University Munich, Ismaninger Strasse 22, 81675, München, Germany
| | - Kai Joachim Borm
- Klinikum rechts der Isar, Department of RadiationOncology, Technical University Munich, Ismaninger Strasse 22, 81675, München, Germany
| | - Stefan Münch
- Klinikum rechts der Isar, Department of RadiationOncology, Technical University Munich, Ismaninger Strasse 22, 81675, München, Germany.,Deutsches Konsortium für Translationale Krebsforschung (DKTK)-Partner Site Munich, Munich, Germany
| | - Christoph Straube
- Klinikum rechts der Isar, Department of RadiationOncology, Technical University Munich, Ismaninger Strasse 22, 81675, München, Germany
| | - Stephanie E Combs
- Klinikum rechts der Isar, Department of RadiationOncology, Technical University Munich, Ismaninger Strasse 22, 81675, München, Germany.,Deutsches Konsortium für Translationale Krebsforschung (DKTK)-Partner Site Munich, Munich, Germany.,Institute of Innovative Radiotherapy, Helmholtzzentrum München, Munich, Germany
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14
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Zhang J, Peng Y, Ding S, Zhu J, Liu Y, Chen M, Sun W, Zhou L, Deng X. Comparison of Different Combinations of Irradiation Mode and Jaw Width in Helical Tomotherapy for Nasopharyngeal Carcinoma. Front Oncol 2020; 10:598. [PMID: 32391275 PMCID: PMC7190867 DOI: 10.3389/fonc.2020.00598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/01/2020] [Indexed: 11/19/2022] Open
Abstract
Purpose: To aid in the selection of a suitable combination of irradiation mode and jaw width in helical tomotherapy (HT) for the treatment of nasopharyngeal carcinoma (NPC). Materials and Methods: Twenty patients with NPC who underwent radiotherapy were retrospectively selected. Four plans using a jaw width of 2.5 or 5-cm in dynamic jaw (DJ) or fix jaw (FJ) modes for irradiation were designed (2.5DJ, 2.5FJ, 5.0DJ, and 5.0FJ). The dose parameters of planning target volume (PTV) and organs at risk (OARs) of the plans were compared and analyzed, as well as the beam on time (BOT) and monitor unit (MU). The plans in each group were ranked by scoring the doses received by the OARs and the superity was assessed in combination with the planned BOT and MU. Results: The prescribed dose coverage of PTV met the clinical requirements for all plans in the four groups. The groups using a 2.5-cm jaw width or a DJ mode provided better protection to most OARs, particularly for those at the longitudinal edges of the PTV (P < 0.05). The 2.5DJ group had the best ranking for OAR-dose, followed by the 2.5FJ and 5.0DJ groups with a same score. The BOT and MU of the groups using a 5.0-cm jaw width reduced nearly 45% comparing to those of the 2.5-cm jaw groups. Conclusion: 2.5DJ has the best dose distribution, while 5.0DJ has satisfactory dose distribution and less BOT and MU that related to the leakage dose. Both 2.5DJ or 5DJ were recommended for HT treatment plan for NPC based on the center workload.
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Affiliation(s)
- Jun Zhang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.,School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Yinglin Peng
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.,School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, China
| | - Shouliang Ding
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Jinhan Zhu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Yimei Liu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Meining Chen
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Wenzhao Sun
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Linghong Zhou
- School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Xiaowu Deng
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
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15
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Takaoka T, Shibamoto Y, Murai T, Kobayashi M, Sugie C, Manabe Y, Kondo T, Okazaki D, Yamada Y, Torii A. Helical tomotherapy for chemo-refractory multiple liver metastases. Cancer Med 2019; 8:7594-7602. [PMID: 31663296 PMCID: PMC6912035 DOI: 10.1002/cam4.2651] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 10/08/2019] [Accepted: 10/13/2019] [Indexed: 12/18/2022] Open
Abstract
Background Despite advances in chemotherapy, curing multiple liver metastases is quite rare. Even when response is obtained, regrowth of the tumors is almost inevitable. We aimed to evaluate the efficacy and adverse events of helical tomotherapy for chemo‐refractory multiple liver metastases. Methods Forty‐five patients with chemo‐refractory multiple (3‐10) liver metastases after standard systemic chemotherapy entered the single‐institutional prospective study. Liver metastases were the major disease; however, 31 also had uncontrolled primary lesions and/or other metastases. The prescribed dose was 55 Gy in 25 fractions. The median planning target volume (PTV) and normal liver volume (NLV) of first treatment were 128 cm3 and 1175 cm3, respectively. The median of V15Gy, V30Gy, and mean dose to NLV were 45%, 23%, and 19.4 Gy, respectively. Results Forty‐two patients (93%) completed the planned treatment. Median survival time (MST) for all patients was 8 months, and the 1‐year survival rate was 29%. The median local control (LC) period was 5 months and the 6‐month control rate of irradiated tumors was 33%. A ≥30% decrease in tumor markers was observed in 31%. The most common grade 3 toxicity was lymphocytopenia (40%), followed by fatigue (6%). Radiation‐induced liver disease (RILD) was not observed. Pancreatic cancer as the primary tumor, distant metastases outside the liver, low pretreatment neutrophil‐to‐lymphocyte ratio (NLR), and low pretreatment monocyte‐to‐lymphocyte ratio (MLR) were associated with poorer prognoses. Conclusions Helical tomotherapy for chemo‐refractory multiple liver metastases is a feasible and potentially effective treatment. Incorporating tomotherapy into the first‐line treatment in combination with systemic chemotherapy should be considered. Trial registration number CROG 12005.
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Affiliation(s)
- Taiki Takaoka
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yuta Shibamoto
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Taro Murai
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | | | - Chikao Sugie
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yoshihiko Manabe
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takuhito Kondo
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Dai Okazaki
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yuki Yamada
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Akira Torii
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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16
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Sun Y, Liu G, Chen W, Chen T, Liu P, Zeng Q, Hong J, Wei R. Dosimetric comparisons of craniospinal axis irradiation using helical tomotherapy, volume-modulated arc therapy and intensity-modulated radiotherapy for medulloblastoma. Transl Cancer Res 2019; 8:191-202. [PMID: 35116748 PMCID: PMC8797767 DOI: 10.21037/tcr.2019.01.30] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/15/2019] [Indexed: 11/06/2022]
Abstract
Background To evaluate the potential dosimetric gains of helical tomotherapy (HT) versus intensity-modulated radiotherapy (IMRT) and volume-modulated arc therapy (VMAT) for craniospinal axis irradiation (CSI) of medulloblastoma. Methods A total of 36 treatment plans were calculated retrospectively for 12 patients with medulloblastoma receiving CSI using HT with TomoTherapy Hi-Art Software (Version 2.0.7) (Accuray, Madison, WI, USA). For each case, the other two different delivery techniques were re-planned with IMRT/VMAT optimized with Eclipse treatment planning system (TPS) (Version 11.0.31). Homogeneity index (HI) and conformity index (CI) of the planning target volume (PTV) and organs at risk (OARs) sparing were analyzed. Differences in plans were evaluated using paired-samples t-test for various dosimetric parameters. Results HT yielded the highest CI in all PTV coverage including PTV of gross tumor volume (PGTV) (HT: 0.7163; VMAT: 0.6688; IMRT: 0.6096), PTVbrain (HT: 0.8490; VMAT: 0.8384; IMRT: 0.7815) and PTVspine (HT: 0.5904; VMAT: 0.5862; IMRT: 0.5797). Meanwhile, HT yielded better HI in PGTV (HT: 0.0543; VMAT: 0.0759; IMRT: 0.0736), PTVbrain (HT: 0.5525; VMAT: 0.5619; IMRT: 0.5554) and PTVspine (HT: 0.0700; VMAT: 0.0782; IMRT: 0.0877). As for OARs, HT demonstrated marked superiority in critical organs including maximal/mean doses of brainstem PRV, optical chiasm and optic nerves. Conclusions For CSI of medulloblastoma, HT offers superior outcomes in terms of PTV conformity, PTV homogeneity and critical OAR sparing as compared with IMRT/VMAT.
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Affiliation(s)
- Yangqing Sun
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Gui Liu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Wen Chen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Taili Chen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Pei Liu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Qian Zeng
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Jidong Hong
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Rui Wei
- Department of Oncology, Xiangya Hospital, Central South University, Changsha 410008, China
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17
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El Shafie RA, Böhm K, Weber D, Lang K, Schlaich F, Adeberg S, Paul A, Haefner MF, Katayama S, Sterzing F, Hörner-Rieber J, Löw S, Herfarth K, Debus J, Rieken S, Bernhardt D. Outcome and prognostic factors following palliative craniospinal irradiation for leptomeningeal carcinomatosis. Cancer Manag Res 2019; 11:789-801. [PMID: 30697071 PMCID: PMC6340499 DOI: 10.2147/cmar.s182154] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Leptomeningeal carcinomatosis (LC) is a severe complication of metastatic tumor spread to the central nervous system. Prognosis is dismal with a median overall survival (OS) of ~10–15 weeks. Treatment options include radiotherapy (RT) to involved sites, systemic chemo- or targeted therapy, intrathecal chemotherapy and best supportive care with dexamethasone. Craniospinal irradiation (CSI) is a more aggressive radiotherapeutic approach, for which very limited data exists. Here, we report on our 10-year experience with palliative CSI of selected patients with LC. Patients and methods Twenty-five patients received CSI for the treatment of LC at our institution between 2008 and 2018. Patients were selected individually for CSI based on clinical performance, presenting symptoms and estimated benefit. Median patient age was 53 years (IQR: 45–59), and breast cancer was the most common primary. Additional brain metastases were found in 18 patients (72.0%). RT was delivered at a TomoTherapy machine, using helical intensity-modulated radiotherapy (IMRT). The most commonly prescribed dose was 36 Gy in 20 fractions, corresponding to a median biologically equivalent dose of 40.8 Gy (IQR: 39.0–2.5). Clinical performance and neurologic function were assessed before and in response to therapy, and deficits were retrospectively quantified on the 5-point neurologic function scale (NFS). A Cox proportional hazards model with univariate and multivariate analyses was fitted for survival. Results Twenty-one patients died and four were alive at the time of analysis. Median OS from LC diagnosis was 19.3 weeks (IQR: 9.3–34.0, 95% CI: 11.0–32.0). In univariate analysis, a Karnofsky performance scale index (KPI) ≥70% (P=0.001), age ≤55 years at LC diagnosis (P=0.022), cerebrospinal fluid (CSF) protein <100 mg/dL (P=0.018) and no more than mild or moderate neurologic deficits (NFS ≤2; P=0.007) were predictive of longer OS. So were the neurologic response to treatment (P=0.018) and the application of systemic therapy after RT completion (P=0.029). The presence of CSF flow obstruction was predictive of shorter OS (P=0.026). In multivariate analysis, age at LC diagnosis (P=0.018), KPI (P<0.001) and neurologic response (P=0.037) remained as independent prognostic factors for longer OS. Treatment-associated toxicity was manageable and mostly grades I and II according to the Common Terminology Criteria for Adverse Events v4.0. Eight patients (32%) developed grade III myelosuppression. Neurologic symptom stabilization could be achieved in 40.0% and a sizeable improvement in 28.0% of all patients. Conclusion CSI for the treatment of LC is feasible and may have therapeutic value in carefully selected patients, alleviating symptoms or delaying neurologic deterioration. OS after CSI was comparable to the rates described in current literature for patients with LC. The use of modern irradiation techniques such as helical IMRT is warranted to limit toxicity. Patient selection should take into account prognostic factors such as age, clinical performance, neurologic function and the availability of systemic treatment options.
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Affiliation(s)
- Rami A El Shafie
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany,
| | - Karina Böhm
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany,
| | - Dorothea Weber
- Institute of Medical Biometry and Informatics (IMBI), Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Kristin Lang
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany,
| | - Fabian Schlaich
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany,
| | - Sebastian Adeberg
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany,
| | - Angela Paul
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany, .,Heavy Ion Therapy Center (HIT), Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Matthias F Haefner
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany,
| | - Sonja Katayama
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany,
| | - Florian Sterzing
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany, .,Department of Radiation Oncology, Klinikum Kempten, Kempten 87439, Germany
| | - Juliane Hörner-Rieber
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany,
| | - Sarah Löw
- Department of Neurology, University Hospital of Heidelberg, Heidelberg 69120, Germany
| | - Klaus Herfarth
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany, .,Heavy Ion Therapy Center (HIT), Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Jürgen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany, .,Heavy Ion Therapy Center (HIT), Heidelberg University Hospital, Heidelberg 69120, Germany.,German Cancer Research Center (DKFZ), Heidelberg 69120, Germany
| | - Stefan Rieken
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany, .,Heavy Ion Therapy Center (HIT), Heidelberg University Hospital, Heidelberg 69120, Germany
| | - Denise Bernhardt
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg 69120, Germany, .,National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg 69120, Germany,
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Shibamoto Y, Murai T, Suzuki K, Hashizume C, Ohta K, Yamada Y, Niwa M, Torii A, Shimohira M. Definitive Radiotherapy With SBRT or IMRT Boost for Breast Cancer: Excellent Local Control and Cosmetic Outcome. Technol Cancer Res Treat 2019; 17:1533033818799355. [PMID: 30222523 PMCID: PMC6141921 DOI: 10.1177/1533033818799355] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The gold standard for breast cancer treatment is surgery, but many women may desire to avoid surgery if possible. The purpose of this study was to evaluate whether breast cancer could be cured with modern sophisticated radiation techniques with good cosmetic outcome. We have treated 18 patients with operable breast cancer by conventional whole-breast irradiation followed by stereotactic body radiotherapy (primary tumor only) or intensity-modulated radiotherapy (tumor plus axillary nodes) boost. The planned doses were 50 Gy in 25 fractions, 18 to 25.5 Gy in 3 fractions, and 20 Gy in 8 fractions, respectively, for the 3 modalities. Stereotactic body radiotherapy was delivered with 7 to 9 coplanar and noncoplanar fixed beams, and intensity-modulated radiotherapy was given by tomotherapy. Chemotherapy and/or hormone therapy was used depending on the stage and receptor status. In 9 recent patients, hydrogen peroxide was intratumorally injected twice a week before whole-breast irradiation. All treatments were well tolerable and there were no grade ≥3 toxicities. With a median follow-up period of 35 months (range, 8-120 months), only 1 patient developed local recurrence and 2 patients developed distant metastasis. Overall survival, progression-free survival, and local control rates were 93%, 85%, and 92%, respectively, at 3 years. In 50% of the patients, the irradiated breast became better rounded, and the position of the nipple of the irradiated breast became ≥1 cm higher compared to that of the unirradiated breast. Thus, the treated breasts may be more aesthetically favorable than before irradiation in these patients. This may become a treatment option for patients with operable breast cancer.
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Affiliation(s)
- Yuta Shibamoto
- 1 Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Taro Murai
- 1 Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Kazushi Suzuki
- 1 Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Chisa Hashizume
- 2 Nagoya Radiosurgery Center, Nagoya Kyoritsu Hospital, Nagoya, Japan
| | - Kengo Ohta
- 1 Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yuki Yamada
- 1 Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Masanari Niwa
- 1 Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Akira Torii
- 1 Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Masashi Shimohira
- 1 Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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El Shafie RA, Böhm K, Weber D, Lang K, Schlaich F, Adeberg S, Paul A, Haefner MF, Katayama S, Hörner-Rieber J, Hoegen P, Löw S, Debus J, Rieken S, Bernhardt D. Palliative Radiotherapy for Leptomeningeal Carcinomatosis-Analysis of Outcome, Prognostic Factors, and Symptom Response. Front Oncol 2019; 8:641. [PMID: 30671384 PMCID: PMC6331444 DOI: 10.3389/fonc.2018.00641] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 12/06/2018] [Indexed: 12/18/2022] Open
Abstract
Introduction: The purpose of this article is to report our institution's 10-year experience on palliative radiotherapy for the treatment of leptomeningeal carcinomatosis (LC), assessing survival, neurologic outcome, and prognostic factors. Patients and methods: We retrospectively analyzed 110 patients who received palliative radiotherapy for LC between 2008 and 2018. The most common histologies were breast cancer (n = 43, 39.1%) and non-small cell lung cancer (NSCLC) (n = 31, 28.2%). Radiotherapy was administered as whole-brain radiotherapy (WBRT) (n = 51, 46.4%), focal spinal RT (n = 11, 10.0%) or both (n = 47, 42.7%). Twenty-five patients (22.7%) were selected for craniospinal irradiation. Clinical performance and neurologic function were quantified on the neurologic function scale (NFS) before and in response to therapy. A Cox Proportional Hazards model with univariate and multivariate analysis was fitted for survival. Results: Ninety-eight patients (89.1%) died and 12 (10.9%) were alive at the time of analysis. Median OS from LC diagnosis and from the beginning of RT was 13.9 weeks (IQR: 7.1-34.0) and 9.9 weeks (IQR: 5.3-26.3), respectively. In univariate analysis, prognostic of longer OS were a Karnofsky performance scale index (KPI) of ≥70% (HR 0.20, 95%-CI: [0.13; 0.32], p < 0.001), initially moderate neurological deficits (NFS ≤2) (HR 0.32, 95% CI: [0.19; 0.52], p < 0.001), symptom response to RT (HR 0.41, 95%-CI: [0.26; 0.67], p < 0.001) and the administration of systemic therapy (HR 0.51, 95%-CI: [0.33; 0.78], p = 0.002). Prognostic of inferior OS were high-grade myelosuppression (HR 1.78, 95% CI: [1.06; 3.00], p = 0.03) and serum LDH levels >500 U/l (HR 3.62, 95% CI: [1.76; 7.44], p < 0.001). Clinical performance, symptom response and serum LDH stayed independently prognostic for survival in multivariate analysis. RT was well-tolerated and except for grade III myelosuppression in 19 cases (17.3%), no high-grade acute toxicities were observed. Neurologic symptom stabilization was achieved in 83 cases (75.5%) and a sizeable improvement in 39 cases (35.5%). Conclusion: Radiotherapy is a well-tolerated and efficacious means of providing symptom palliation for patients with LC, delaying neurologic deterioration while probably not directly influencing survival. Prognostic factors such as clinical performance, neurologic response and serum LDH can be used for patient stratification to facilitate treatment decisions.
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Affiliation(s)
- Rami A. El Shafie
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
| | - Karina Böhm
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
| | - Dorothea Weber
- Institute of Medical Biometry and Informatics, Heidelberg University Hospital, Heidelberg, Germany
| | - Kristin Lang
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
| | - Fabian Schlaich
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
| | - Sebastian Adeberg
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
| | - Angela Paul
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital, Heidelberg, Germany
| | - Matthias F. Haefner
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
| | - Sonja Katayama
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
| | - Juliane Hörner-Rieber
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
| | - Philipp Hoegen
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
| | - Sarah Löw
- Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany
| | - Jürgen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
- Clinical Cooperation Unit Radiation Oncology (E050), German Cancer Research Center (DKFZ), Heidelberg, Germany
- Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site Heidelberg, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefan Rieken
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
- Heidelberg Ion-Beam Therapy Center (HIT), Heidelberg University Hospital, Heidelberg, Germany
| | - Denise Bernhardt
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany
- National Center for Radiation Oncology, Heidelberg Institute for Radiation Oncology, Heidelberg, Germany
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Byun HK, Yi S, Yoon HI, Kim SH, Cho J, Suh CO. Clinical outcomes of radiotherapy for spinal cord ependymoma with adverse prognostic features: a single-center study. J Neurooncol 2018; 140:649-657. [PMID: 30203166 DOI: 10.1007/s11060-018-2995-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 09/04/2018] [Indexed: 01/19/2023]
Abstract
PURPOSE This study evaluated the outcomes of radiotherapy (RT) for spinal ependymoma with adverse features, such as incomplete resection or disseminated disease. METHODS Twenty-five patients underwent RT for spinal cord ependymoma during 1991-2016. Twenty-four patients had gross disease on the pre-RT spinal magnetic resonance images. Six patients (24%) had disseminated disease. The World Health Organization grades were I (12 patients), II (12 patients), and III (1 patient). The RT fields were the tumor bed plus margin in 19 patients (76%), the entire craniospinal axis in 5 patients (20%), and the entire spinal canal with posterior cranial fossa in 1 patient (4%). The median RT dose was 50.4 Gy (range 44.0-59.4 Gy). RESULTS The median follow-up was 49 months (range 9-321 months), with 5-year overall and progression-free survival rates of 83.7% and 70.8%, respectively. Relative to patients with grade II/III ependymoma, patients with grade I ependymoma had higher 5-year rates of overall survival (100% vs. 69.4%, P = .088) and progression-free survival (100% vs. 42.3%, P = .02). Disease progression was observed in 4 patients who had grade II ependymoma, including 2 of 6 patients with disseminated disease and 2 of 19 patients with localized disease. Twelve patients (48%) exhibited improved neurological function. One patient who underwent craniospinal irradiation developed late hypopituitarism. No other RT-related late toxicities were observed. CONCLUSIONS Favorable survival outcomes were achieved using RT for spinal ependymoma with adverse prognostic features. Thus, RT may be an effective treatment option when complete tumor removal cannot be achieved.
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Affiliation(s)
- Hwa Kyung Byun
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Seong Yi
- Department of Neurosurgery, Spine and Spinal Cord Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hong In Yoon
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Se Hoon Kim
- Department of Pathology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jaeho Cho
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Chang-Ok Suh
- Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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A dosimetric comparison of craniospinal irradiation using TomoDirect radiotherapy, TomoHelical radiotherapy and 3D conventional radiotherapy. JOURNAL OF RADIOTHERAPY IN PRACTICE 2017. [DOI: 10.1017/s1460396917000309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
AbstractAimThe purpose of this study was to dosimetrically compare TomoDirect, TomoHelical and linear accelerator-based 3D-conformal radiotherapy (Linac-3DCRT) for craniospinal irradiation (CSI) in the treatment of medulloblastoma.MethodsFive CSI patients were replanned with Linac-3DCRT, TomoHelical, TomoDirect-3DCRT and TomoDirect-intensity-modulated radiotherapy (IMRT). Dose of 36 Gy in 20 fractions was prescribed to the planning target volume (PTV). Homogeneity index (HI), non-target integral dose (NTID), dose–volume histograms, organs-at-risk (OARs)Dmax,Dmeanand treatment times were compared.ResultsTomoHelical achieved the best PTV homogeneity compared with Linac-3DCRT, TomoDirect-3DCRT and TomoDirect-IMRT (HI of 3·6 versus 20·9, 8·7 and 9·4%, respectively). TomoDirect-IMRT achieved the lowest NTID compared with TomoDirect-3DCRT, TomoHelical and Linac-3DCRT (141 J versus 151 J, 181 J and 250 J), indicating least biological damage to normal tissues. TomoHelical plans achieved the lowestDmaxin all organs except the breasts, and lowestDmeanfor most OARs, except in laterally situated OARs, where TomoDirect triumphed. Beam-on time was longest for TomoHelical, followed by TomoDirect and Linac-3DCRT.FindingsTomoDirect has the potential to lower NTID and shorten treatment times compared with TomoHelical. It reduces PTV inhomogeneity and better spares OARs compared with Linac-3DCRT. Therefore, TomoDirect may be a CSI treatment alternative to TomoHelical and in place of Linac-3DCRT.
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Schiopu SR, Habl G, Häfner M, Katayama S, Herfarth K, Debus J, Sterzing F. Craniospinal irradiation using helical tomotherapy for central nervous system tumors. JOURNAL OF RADIATION RESEARCH 2017; 58:238-246. [PMID: 28096196 PMCID: PMC5439401 DOI: 10.1093/jrr/rrw095] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Revised: 05/16/2016] [Accepted: 08/11/2016] [Indexed: 06/06/2023]
Abstract
The aim of this study was to describe early and late toxicity, survival and local control in 45 patients with primary brain tumors treated with helical tomotherapy craniospinal irradiation (HT-CSI). From 2006 to 2014, 45 patients with central nervous system malignancies were treated with HT-CSI. The most common tumors were medulloblastoma in 20 patients, ependymoma in 10 patients, intracranial germinoma (ICG) in 7 patients, and primitive neuroectodermal tumor in 4 patients. Hematological toxicity during treatment included leukopenia Grades 1-4 (6.7%, 33.3%, 37.8% and 17.8%, respectively), anemia Grades 1-4 (44.4%, 22.2%, 22.2% and 0%, respectively) and thrombocytopenia Grades 1-4 (51.1%, 15.6%, 15.6% and 6.7%, respectively). The most common acute toxicities were nausea, vomiting, fatigue, loss of appetite, alopecia and neurotoxicity. No Grade 3 or higher late toxicity occurred. The overall 3- and 5-year survival rates were 80% and 70%, respectively. Survival for the main tumor entities included 3- and 5-year survival rates of 80% and 70%, respectively, for patients with medulloblastoma, 70% for both in patients with ependymoma, and 100% for both in patients with ICG. Relapse occurred in 11 patients (24.4%): 10 with local and 1 with multifocal relapse. One patient experienced a secondary cancer. M-status and the results of the re-evaluation at the end of treatment were significantly related to survival. Survival after HT-CSI was in line with the existing literature, and acute treatment-induced toxicity resolved quickly. Compared with conventional radiotherapy, HT offers benefits such as avoiding gaps and junctions, sparing organs, and better and more homogeneous dose distribution and coverage of the target volume.
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Affiliation(s)
- Sanziana R.I. Schiopu
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, Heidelberg 69120, Germany
| | - Gregor Habl
- Klinikum rechts der Isar, Department of Radiation Oncology, Technische Universität München, Ismaninger Straße 22, 81675 München, Germany
| | - Matthias Häfner
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, Heidelberg 69120, Germany
| | - Sonja Katayama
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, Heidelberg 69120, Germany
| | - Klaus Herfarth
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, Heidelberg 69120, Germany
| | - Juergen Debus
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, Heidelberg 69120, Germany
| | - Florian Sterzing
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, Heidelberg 69120, Germany
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Pediatric craniospinal irradiation with conventional technique or helical tomotherapy: impact of age and body volume on integral dose. TUMORI JOURNAL 2016; 102:387-92. [PMID: 27056336 DOI: 10.5301/tj.5000512] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2016] [Indexed: 11/20/2022]
Abstract
PURPOSE The use of helical tomotherapy (HT) for craniospinal irradiation (CSI) in pediatric patients remains an issue of discussion. In this study, we evaluated the integral dose (ID) to organs at risk (OARs) and to the whole body delivered with conventional 3-dimensional conformal radiotherapy (3D-CRT) and HT for pediatric patients and made a comparison according to different whole body volumes. METHODS We selected 10 pediatric patients with different body volumes and of different ages undergoing CSI. Plans for 3D-CRT and HT were developed for each patient. The ID to OARs and to the whole body were compared and statistical analyses were performed to determine differences. RESULTS We noticed that variations of ID depend on the different anatomical location of the organs relatively to the target, with lower ID to OARs opposed to the target and increased ID to lateral organs: ID tomotherapy/3D-CRT ratio was higher in lungs, kidneys, and mammary region, while it was lower in heart, liver, thyroid, and esophagus. The ID of the body increased with large volumes both in HT and in 3D-CRT plans, but in tomotherapy plans ID increased significantly more with large volumes than with small ones. CONCLUSIONS While there are no differences in using tomotherapy or 3D-CRT with small body volumes, we found a difference with large volumes (≥20,000 mL vs ≤20,000 mL). Therefore, for very small patients, the use of intensity-modulated radiotherapy provided with tomotherapy to reduce the dose to OARs can be reconsidered.
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Li Q, Gu W, Mu J, Yin W, Gao M, Mo J, Pei H. Collimator rotation in volumetric modulated arc therapy for craniospinal irradiation and the dose distribution in the beam junction region. Radiat Oncol 2015; 10:235. [PMID: 26584626 PMCID: PMC4653929 DOI: 10.1186/s13014-015-0544-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 10/27/2015] [Indexed: 11/10/2022] Open
Abstract
PURPOSE The purpose of this study was to investigate the role of beam collimator rotation in Volumetric Modulated Arc Therapy (VMAT) for craniospinal irradiation (CSI), and the impact on dose distribution in the beam junctions. METHODS Six adult patients were selected for the study. Six VMAT plans with different collimator angles were generated for each patient. The patients were treated in supine position with two beam isocenters. The plans were evaluated by analysis of Dose-Volume Histogram (DVHs) data for planning target volume (PTV) and organs at risk (OAR), and conformity index (CI) and homogeneity index (HI) for the target. Dose distributions in the beam junctions were examined carefully and experimentally validated in phantom, with measurement using an ion chamber array and film. RESULTS The mean values of HI and CI for the plans with different beam collimator angles were not significantly different. The numbers of segments, monitor units (MUs) and the delivery time of the plans with 45° beam collimator were obviously higher than those in plans with other beam collimator angles. When collimator angle for both sets of beams were set at 0°, there was a 1 mm low dose gap measured in the junction region. CONCLUSIONS By setting the collimator angle to 45°, only two isocenters were needed for the treatment of a target with the length up to 90 cm. The HI and CI of the plans were almost the same, regardless if the collimator angles were at 0°. The collimator angles for at least one set of beams should be off 0° in order to avoid a dose gap in the beam junction region.
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Affiliation(s)
- Qilin Li
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou City, 185 Ju Qian Jie, Changzhou City, 213003, Jiangsu Province, China.
| | - Wendong Gu
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou City, 185 Ju Qian Jie, Changzhou City, 213003, Jiangsu Province, China.
| | - Jinming Mu
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou City, 185 Ju Qian Jie, Changzhou City, 213003, Jiangsu Province, China.
| | - Wenming Yin
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou City, 185 Ju Qian Jie, Changzhou City, 213003, Jiangsu Province, China.
| | - Min Gao
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou City, 185 Ju Qian Jie, Changzhou City, 213003, Jiangsu Province, China.
| | - Juncong Mo
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou City, 185 Ju Qian Jie, Changzhou City, 213003, Jiangsu Province, China.
| | - Honglei Pei
- Department of Radiation Oncology, The Third Affiliated Hospital of Soochow University, The First People's Hospital of Changzhou City, 185 Ju Qian Jie, Changzhou City, 213003, Jiangsu Province, China.
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Bandurska-Luque A, Piotrowski T, Skrobała A, Ryczkowski A, Adamska K, Kaźmierska J. Prospective study on dosimetric comparison of helical tomotherapy and 3DCRT for craniospinal irradiation - A single institution experience. Rep Pract Oncol Radiother 2015; 20:145-52. [PMID: 25859405 PMCID: PMC4338290 DOI: 10.1016/j.rpor.2014.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 10/28/2014] [Accepted: 12/11/2014] [Indexed: 10/24/2022] Open
Abstract
AIM This prospective study aims to assess feasibility of helical tomotherapy (HT) for craniospinal irradiation (CSI) and perform dosimetric comparison of treatment plans for both HT and 3D conformal radiotherapy (3DCRT). BACKGROUND CSI is a challenging procedure. Large PTV size requires field matching due to technical limitations of standard linear accelerators, which cannot irradiate such volumes as a single field. HT could help to avoid these limitations as irradiation of long fields is possible without field matching. MATERIALS AND METHODS Three adults were enrolled from 2009 to 2010. All patients received radiochemotherapy. Treatment plans in prone position for 3DCRT and in supine position for HT were generated. The superior plan was used for patients' irradiation. Plans were compared with the application of DVH, Dx parameters - where x represents a percentage of the structure volume receiving a normalized dose and homogeneity index (HI). RESULTS All patients received HT irradiation. The treatment was well tolerated. The HT plans resulted in a better dose coverage and uniformity in the PTV: HI were 5.4, 7.8, 6.8 for HT vs. 10.3, 6.6, 10.4 for 3DCRT. For most organs at risk (OARs), the D(V80) was higher for HT than for 3DCRT, whereas D(V5) was lower for HT. CONCLUSIONS HT is feasible for CSI, and in comparison with 3DCRT it improves PTV coverage. HT reduces high dose volumes of OARs, but larger volumes of normal tissue receive low radiation dose. HT requires further study to establish correlations between dosimetrical findings and clinical outcomes, especially with regard to late sequelae of treatment.
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Affiliation(s)
| | - Tomasz Piotrowski
- Department of Electroradiology, University of Medical Sciences, Poznań, Poland
- Medical Physics Department, Greater Poland Cancer Centre, Poznań, Poland
| | - Agnieszka Skrobała
- Department of Electroradiology, University of Medical Sciences, Poznań, Poland
- Medical Physics Department, Greater Poland Cancer Centre, Poznań, Poland
| | - Adam Ryczkowski
- Medical Physics Department, Greater Poland Cancer Centre, Poznań, Poland
| | - Krystyna Adamska
- Radiotherapy Department III, Greater Poland Cancer Centre, Poznań, Poland
| | - Joanna Kaźmierska
- Radiotherapy Department II, Greater Poland Cancer Centre, Poznań, Poland
- Department of Electroradiology, University of Medical Sciences, Poznań, Poland
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Manabe Y, Shibamoto Y, Sugie C, Hayashi A, Murai T, Yanagi T. Helical and Static-port Tomotherapy Using the Newly-developed Dynamic Jaws Technology for Lung Cancer. Technol Cancer Res Treat 2014; 14:583-91. [PMID: 24945375 PMCID: PMC4639908 DOI: 10.7785/tcrtexpress.2013.600280] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Accepted: 06/05/2014] [Indexed: 11/19/2022] Open
Abstract
With the newly developed dynamic jaws technology, radiation dose for the cranio-caudal edges of a target can be lowered in the treatment with tomotherapy. We compared dynamic-jaw- and fixed-jaw-mode plans for lung cancer. In 35 patients, four plans using the 2.5-cm dynamic-, 2.5-cm fixed-, 5.0-cm dynamic-, and 5.0-cm fixed-jaw modes were generated. For 10 patients with upper lobe stage I lung cancer, the helical tomotherapy mode was used. Fifty-six Gy in 8 fractions was prescribed as a minimum coverage dose for 95% of the target (D95%). For 25 patients with locally advanced lung cancer, plans using four static ports (TomoDirect® mode) were made. Sixty Gy in 30 daily fractions for the primary tumor and swollen lymph nodes and 51 Gy in 30 fractions for prophylactic lymph node areas were prescribed as median doses. The mean conformity index of the planning target volume were similar among the four plans. The mean V5 Gy of the lung for 2.5-cm dynamic-, 2.5-cm fixed-, 5.0-cm dynamic-, and 5.0-cm fixed-jaw mode plans were 18.5%, 21.8%, 20.1%, and 29.4%, respectively (p < 0.0001), for patients with stage I lung cancer, and 37.3%, 38.7%, 40.4%, and 44.0%, respectively (p < 0.0001), for patients with locally advanced lung cancer. The mean V5 Gy of the whole body was 1,826, 2,143, 1,983, and 2,939 ml, respectively (p < 0.0001), for patients with stage I lung cancer and 4,849, 5,197, 5,220, and 6,154 ml, respectively (p < 0.0001), for patients with locally advanced lung cancer. Treatment time was reduced by 21-39% in 5.0-cm dynamic-jaw plans compared to 2.5-cm plans. Regarding dose distribution, 2.5-cm dynamic-jaw plans were the best, and 5.0-cm dynamic-jaw plans were comparable to 2.5-cm fixed-jaw plans with shorter treatment times. The dynamic-jaw mode should be used instead of the conventional fixed-jaw mode in tomotherapy for lung cancer.
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Affiliation(s)
- Yoshihiko Manabe
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Yuta Shibamoto
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Chikao Sugie
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Akihiro Hayashi
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Taro Murai
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Takeshi Yanagi
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
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Sugie C, Manabe Y, Hayashi A, Murai T, Takaoka T, Hattori Y, Iwata H, Takenaka R, Shibamoto Y. Efficacy of the Dynamic Jaw Mode in Helical Tomotherapy With Static Ports for Breast Cancer. Technol Cancer Res Treat 2014; 14:459-65. [PMID: 25398681 PMCID: PMC4535315 DOI: 10.1177/1533034614558746] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 10/06/2014] [Indexed: 11/30/2022] Open
Abstract
The recently developed dynamic jaw technology of tomotherapy can reduce craniocaudal dose spread without much prolonging the treatment time. This study aimed to investigate the efficacy of the dynamic jaw mode for tomotherapy of breast cancer. Static tomotherapy plans of the whole breast and supraclavicular regional lymph nodes, and plans for the whole breast only were generated in 25 patients with left-sided breast cancer. Plans with a field width of 2.5 or 5 cm with the dynamic or fixed jaw modes were made for each patient. The prescribed dose was 50 Gy in 25 fractions. In whole breast and supraclavicular nodal radiotherapy, dose distributions and homogeneity of the planning target volume (PTV) with the dynamic jaw mode were slightly inferior to those with the fixed jaw mode with a 5-cm field width (P < .05). However, lung low-dose volumes and mean doses of the larynx, thyroid, skin, and all the healthy tissues combined were smaller with the dynamic jaw mode than with the fixed jaw mode with a 5-cm field width (P < .001). In whole breast radiotherapy, mean doses of the skin and healthy tissues were lower with the dynamic jaw mode than with the fixed jaw mode with a 5-cm field width (P < .001) without significant differences in PTV dose distributions, homogeneity, and conformity. The dynamic jaw mode provided better sparing of organs at risks with minimal disturbance of dose–volume indices of PTV. Considering the treatment time, the 5-cm-field dynamic jaw mode is more efficient than the 2.5-cm fixed jaw mode.
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Affiliation(s)
- Chikao Sugie
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yoshihiko Manabe
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Akihiro Hayashi
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan Department of Radiology, Okazaki City Hospital, Okazaki, Japan
| | - Taro Murai
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Taiki Takaoka
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yukiko Hattori
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya, Japan
| | - Hiromitsu Iwata
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya, Japan
| | - Ran Takenaka
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan Department of Radiology, Narita Memorial Hospital, Toyohashi, Japan
| | - Yuta Shibamoto
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Qu B, Du L, Huang Y, Yu W, Cai B, Xu S, Ma L. Clinical analysis of intracranial germinoma's craniospinal irradiation using helical tomotherapy. Chin J Cancer Res 2014; 26:247-54. [PMID: 25035651 DOI: 10.3978/j.issn.1000-9604.2014.05.02] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 04/18/2014] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE To evaluate the short-term clinical outcomes of intracranial germinoma patients treated with craniospinal irradiation (CSI) using helical tomotherapy (HT) system in our center. METHODS Twenty-three patients who were treated with CSI in our center from January 2008 to July 2012 were collected, with an average age of 20. All of the patients' CSI used the HT system. The total doses were 27-36 Gy/15-20 F (1.5-2 Gy per fraction), and total local doses were 46-60 Gy/30-50 F (5 fractions per week). All female patients for CSI were treated with left-right parallel-opposed field irradiation to protect their ovarian functions. Median follow-up time was 30.9 months (range, 5-67 months). The SPSS19.0 software was used, and the overall survival (OS) was calculated using the Kaplan-Meier method. RESULTS Among 17 patients with assessable tumors, 9 cases (52.9%) were CR, 7 cases (41.2%) were PR, and 1 case (5.9%) was SD. Hematological toxicity was the severest side-effect occurred in the procedure of CSI. The level 1-4 acute leukopenia were 8.7%, 30.4%, 34.8% and 21.7% and the level 1-4 acute thrombopenia were 8.7%, 30.4%, 21.7% and 8.7%, respectively. CONCLUSIONS For primary intracranial germinomas, HT can be used to implement CSI for simplifying radiotherapy procedures, improving radiotherapy accuracy, enhancing protection of peripheral organs at risk (ORA) and guaranteeing therapeutic effects. With the acceptable acute and long-term toxicity, CSI using HT in intracranial germinoma patients can be a safe and alternative mode.
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Affiliation(s)
- Baolin Qu
- Department of Radiotherapy, PLA General Hospital, Beijing 100853, China
| | - Lei Du
- Department of Radiotherapy, PLA General Hospital, Beijing 100853, China
| | - Yurong Huang
- Department of Radiotherapy, PLA General Hospital, Beijing 100853, China
| | - Wei Yu
- Department of Radiotherapy, PLA General Hospital, Beijing 100853, China
| | - Boning Cai
- Department of Radiotherapy, PLA General Hospital, Beijing 100853, China
| | - Shouping Xu
- Department of Radiotherapy, PLA General Hospital, Beijing 100853, China
| | - Lin Ma
- Department of Radiotherapy, PLA General Hospital, Beijing 100853, China
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Petersson K, Gebre-Medhin M, Ceberg C, Nilsson P, Engström P, Knöös T, Kjellén E. Haematological toxicity in adult patients receiving craniospinal irradiation--indication of a dose-bath effect. Radiother Oncol 2014; 111:47-51. [PMID: 24680378 DOI: 10.1016/j.radonc.2014.01.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 01/23/2014] [Accepted: 01/26/2014] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND PURPOSE The purpose of this study was to investigate the correlation between the haematological toxicity observed in patients treated with craniospinal irradiation, and the dose distribution in normal tissue, specifically the occurrence of large volumes exposed to low dose. MATERIALS AND METHODS Twenty adult male patients were included in this study; eight treated with helical tomotherapy (HT), and twelve with three-dimensional conformal radiation therapy. The relative volume of red bone marrow and body that was exposed to low dose (i.e. the so-called dose bath) was evaluated and correlated with nadir blood values during treatment, i.e. the severity of anaemia, leukopaenia, and thrombocytopaenia. The correlation was tested for different dose levels representing the dose bath using the Pearson product-moment correlation method. RESULTS We found a significant correlation between the volume of red bone marrow exposed to low dose and the severity of thrombocytopaenia during treatment. Furthermore, for the HT patients, a significant correlation was found between the relative volume of the body exposed to low dose and the severity of anaemia and leukopenia. CONCLUSIONS The severity of haematological toxicity correlated with the fraction of red bone marrow or body that was exposed to low dose.
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Affiliation(s)
- Kristoffer Petersson
- Department of Medical Radiation Physics, Clinical Sciences, Lund University, Lund, Sweden.
| | | | - Crister Ceberg
- Department of Medical Radiation Physics, Clinical Sciences, Lund University, Lund, Sweden
| | - Per Nilsson
- Department of Oncology, Skåne University Hospital, Lund, Sweden
| | - Per Engström
- Department of Medical Radiation Physics, Clinical Sciences, Lund University, Lund, Sweden; Radiation Physics, Skåne University Hospital, Lund, Sweden
| | - Tommy Knöös
- Department of Medical Radiation Physics, Clinical Sciences, Lund University, Lund, Sweden; Radiation Physics, Skåne University Hospital, Lund, Sweden
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Langner UW, Molloy JA, Gleason JF, Feddock JM. A feasibility study using TomoDirect for craniospinal irradiation. J Appl Clin Med Phys 2013; 14:104-14. [PMID: 24036863 PMCID: PMC5714580 DOI: 10.1120/jacmp.v14i5.4304] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 05/09/2013] [Accepted: 05/07/2013] [Indexed: 11/28/2022] Open
Abstract
The feasibility of delivering craniospinal irradiation (CSI) with TomoDirect is investigated. A method is proposed to generate TomoDirect plans using standard three‐dimensional (3D) beam arrangements on Tomotherapy with junctioning of these fields to minimize hot or cold spots at the cranial/spinal junction. These plans are evaluated and compared to a helical Tomotherapy and a three‐dimensional conformal therapy (3D CRT) plan delivered on a conventional linear accelerator (linac) for CSI. The comparison shows that a TomoDirect plan with an overlap between the cranial and spinal fields might be preferable over Tomotherapy plans because of decreased low dose to large volumes of normal tissues outside of the planning target volume (PTV). Although the TomoDirect plans were not dosimetrically superior to a 3D CRT linac plan, the patient can be easily treated in the supine position, which is often more comfortable and efficient from an anesthesia standpoint. TomoDirect plans also have only one setup position which obviates the need for matching of fields and feathering of junctions, two issues encountered with conventional 3D CRT plans. TomoDirect plans can be delivered with comparable treatment times to conventional 3D plans and in shorter times than a Tomotherapy plan. In this paper, a method is proposed for creating TomoDirect craniospinal plans, and the dosimetric consequences for choosing different planning parameters are discussed. PACS number: 87.55.D‐
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Outcome and toxicity using helical tomotherapy for craniospinal irradiation in pediatric medulloblastoma. Clin Transl Oncol 2013; 16:96-101. [PMID: 23632814 DOI: 10.1007/s12094-013-1048-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 04/16/2013] [Indexed: 01/30/2023]
Abstract
PURPOSE The objective of this study is to evaluate the tolerability and outcome of craniospinal irradiation (CSI) with helical tomotherapy (HT) in the treatment of medulloblastoma. METHODS We evaluated 19 consecutive patients with primary medulloblastoma who were treated with HT from 2007 through 2010. HT regimens to the neuroaxis included: 23.4 Gy at 1.8 Gy/fraction (N = 10), 36 Gy at 1.8 Gy/fraction (N = 7), and 39 Gy bid at 1.3 Gy/fraction (N = 2). The tumor bed received 54-60 Gy. Potential associations between patient, treatment, and toxicity factors and overall survival (OS) were assessed in univariate analyses using the Cox proportional hazards model. Spearman's rank correlation coefficient was used to correlate potential risk factors with the grade of acute toxicity. RESULTS The median age at diagnosis was 5 years (range 2-14) and the median follow-up for alive patients (N = 14) 40 months (range 10-62). Two- and three-year overall survival was 75 and 68 %, respectively. The most common acute toxicity was hematological (79 %), being grade 2 and grade 3 in 4 (21 %) and 11 (58 %) cases, respectively. No grade ≥2 late toxicities were observed. Higher grades of acute body toxicity were found in older children (P = 0.004). Longer time between diagnosis and radiation therapy was correlated with shorter OS (P = 0.03). In addition, higher grades of acute thrombocytopenia were associated with shorter OS (P = 0.03). CONCLUSIONS CSI delivered with HT for medulloblastoma is well tolerated with low rates of severe acute toxicity. Further research is necessary to assess late toxicity with a longer follow-up.
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Shibamoto Y, Okamoto M, Kobayashi M, Ayakawa S, Iwata H, Sugie C, Mitsuishi Y, Takahashi H. Immune-maximizing (IMAX) therapy for cancer: Combination of dendritic cell vaccine and intensity-modulated radiation. Mol Clin Oncol 2013; 1:649-654. [PMID: 24649223 PMCID: PMC3915482 DOI: 10.3892/mco.2013.108] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 04/23/2013] [Indexed: 12/23/2022] Open
Abstract
A dendritic cell (DC)-based vaccine was combined with intensity-modulated radiotherapy (IMRT) or other conformal radiotherapy (RT), assuming minimal immunosuppression by such RT modalities. In this study, the outcomes in the first 40 patients are presented. The patients had recurrent, metastatic or locally advanced tumors. Nine had previously undergone full-course RT. Peripheral blood mononuclear cells obtained by leukapheresis were cultured with granulocyte-macrophage colony-stimulating factor, interleukin-4, OK-432 and prostaglandin E2 to generate DCs, which were pulsed with autologous tumor lysates or tumor-specific peptides, such as WT1. IMRT using tomotherapy, stereotactic irradiation or 3-dimensional conformal RT (3DCRT) was initially administered. The standard dose was 30 and 60 Gy in patients with and without previous RT, respectively. Every other week thereafter, up to a total of 7 times, DC vaccines were injected directly into the tumor (n=15) or administered intradermally when DCs were pulsed with tumor lysates or peptides. The tumor response was evaluated according to the response evaluation criteria in solid tumors (RECIST). RT and DC vaccines were well tolerated and there were no major complications. Three patients were not able to complete the planned DC therapy due to disease progression. For the 31 patients receiving full-dose RT, the response rate was 61% and for the 9 patients who had previously received RT, the response rate was 55%. In 9 patients, the tumor response outside the RT target volume was evaluable: 22% had a partial response (PR), 33% had stable disease (SD) and 44% had progressive disease (PD). In conclusion, a combination of IMRT (or 3DCRT) and DC vaccine is feasible and requires further investigation.
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Affiliation(s)
- Yuta Shibamoto
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Aichi 467-8601
| | - Masato Okamoto
- Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo 160-8582
| | - Masanori Kobayashi
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Aichi 467-8601; ; Seren Clinic Nagoya, Aichi 460-0008
| | - Shiho Ayakawa
- Department of Radiology, Nagoya Daini Red Cross Hospital, Aichi 466-8650
| | - Hiromitsu Iwata
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Aichi 467-8601
| | - Chikao Sugie
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Aichi 467-8601
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Abstract
PURPOSE OF REVIEW This review provides information and an update on stereotactic radiosurgery (SRS) equipment, with a focus on intracranial lesions and brain neoplasms. RECENT FINDINGS Gamma Knife radiosurgery represents the gold standard for intracranial radiosurgery, using a dedicated equipment, and has recently evolved with a newly designed technology, Leksell Gamma Knife Perfexion. Linear accelerator-based radiosurgery is more recent, and originally based on existing systems, either adapted or dedicated to radiosurgery. Equipment incorporating specific technologies, such as the robotic CyberKnife system, has been developed. Novel concepts in radiation therapy delivery techniques, such as intensity-modulated radiotherapy, were also developed; their integration with computed tomography imaging and helical delivery has led to the TomoTherapy system. Recent data on the management of intracranial tumors with radiosurgery illustrate the trend toward a larger use and acceptance of this therapeutic modality. SUMMARY SRS has become an important alternative treatment for a variety of lesions. Each radiosurgery system has its advantages and limitations. The 'perfect' and ubiquitous system does not exist. The choice of a radiosurgery system may vary with the strategy and needs of specific radiosurgery programs. No center can afford to acquire every technology, and strategic choices have to be made. Institutions with large neurosurgery and radiation oncology programs usually have more than one system, allowing optimization of the management of patients with a choice of open neurosurgery, radiosurgery, and radiotherapy. Given its minimally invasive nature and increasing clinical acceptance, SRS will continue to progress and offer new advances as a therapeutic tool in neurosurgery and radiotherapy.
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