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Arendt CT, Eichler K, Mack MG, Leithner D, Zhang S, Block KT, Berdan Y, Sader R, Wichmann JL, Gruber-Rouh T, Vogl TJ, Hoelter MC. Comparison of contrast-enhanced videofluoroscopy to unenhanced dynamic MRI in minor patients following surgical correction of velopharyngeal dysfunction. Eur Radiol 2020; 31:76-84. [PMID: 32740819 DOI: 10.1007/s00330-020-07098-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/02/2020] [Accepted: 07/21/2020] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To compare dynamic magnetic resonance imaging (MRI) with videofluoroscopy (VFS) regarding image quality and assessment of gap size between soft palate (SP) and posterior pharyngeal wall (PPW) in children and adolescents following surgical correction of velopharyngeal dysfunction (VPD). METHODS Twenty-one patients undergoing unenhanced 3-T MRI and contrast-enhanced VFS were included in this IRB-approved prospective study. The MRI scan protocol comprised refocused gradient-echo sequences in transverse and sagittal planes during speech, with TE 1.97 ms, TR 3.95 ms, flip angle 8°, matrix size 128 × 128, and 5-mm slice thickness. Radial k-space sampling and sliding window reconstruction were used to achieve an image acquisition rate of 28 frames per second (fps). VFS with 30 fps was similarly performed in both planes. Closure of the velopharyngeal port during phonation was evaluated by two experienced radiologists. RESULTS Eleven (52.4%) patients displayed a complete closure, whereas ten (47.6%) patients showed a post-operative gap during speech. VFS and MRI equally identified the cases with persistent or recurrent VPD. Differences in SP-PPW distance between VFS (3.9 ± 1.6 mm) and MRI (4.1 ± 1.5 mm) were not statistically significant (p = 0.5). The subjective overall image quality of MRI was rated inferior (p < 0.001) compared with VFS, with almost perfect inter-rater agreement (κ = 0.90). The presence of susceptibility artifacts did not limit anatomical measurements. CONCLUSION Dynamic MRI is equally reliable as VFS to assess persistent or recurrent inadequate velum closure in patients following surgical treatment of VPD. KEY POINTS • Unenhanced 3-T dynamic MRI and contrast-enhanced videofluoroscopy are equally useful for the identification of patients with incomplete velopharyngeal closure during speech. • MRI using refocused gradient-echo acquisition with radial k-space sampling and sliding window reconstruction generates diagnostic images with 28 frames per second. • MRI can offer a radiation-free alternative to currently established videofluoroscopy for young patients.
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Affiliation(s)
- C T Arendt
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
| | - K Eichler
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - M G Mack
- Radiology Munich, Munich, Germany
| | - D Leithner
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - S Zhang
- Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
| | - K T Block
- Department of Radiology, University Hospital Basel, Basel, Switzerland
- Department of Radiology, New York University Langone Health, New York, NY, USA
| | - Y Berdan
- Department of Oral, Cranio-Maxillofacial and Facial Plastic Surgery, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - R Sader
- Department of Oral, Cranio-Maxillofacial and Facial Plastic Surgery, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - J L Wichmann
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - T Gruber-Rouh
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - T J Vogl
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - M C Hoelter
- Institute for Neuroradiology, University Hospital Frankfurt, Frankfurt am Main, Germany
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Baumbach SF, Braunstein M, Mack MG, Maßen F, Böcker W, Polzer S, Polzer H. [Insertional Achilles tendinopathy : Differentiated diagnostics and therapy]. Unfallchirurg 2019; 120:1044-1053. [PMID: 28980027 DOI: 10.1007/s00113-017-0415-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Achilles tendinopathy at the calcaneal insertion is classified into insertional tendinopathy, retrocalcaneal and superficial bursitis. The aim of this study was to present the current evidence on conservative and surgical treatment of insertional tendinopathy of the Achilles tendon. Conservative first-line therapy includes reduction of activity levels, administration of non-steroidal anti-inflammatory drugs (NSAID), adaptation of footwear, heel wedges and orthoses or immobilization. In addition, further conservative therapy options are also available. Eccentric stretching exercises should be integral components of physiotherapy and can achieve a 40% reduction in pain. Extracorporeal shock wave therapy has been shown to reduce pain by 60% with a patient satisfaction of 80%. Due to the limited evidence, injections with platelet-rich plasma (PRP), dextrose (prolotherapy) or polidocanol (sclerotherapy) cannot currently be recommended. Operative therapy is indicated after 6 months of unsuccessful conservative therapy. Open debridement allows all pathologies to be addressed, including osseous abnormalities and intratendinous necrosis. The success rate of over 70% is contrasted by complication rates of up to 40%. The Achilles tendon should be reattached, if detached by >50%. No valid data are available for the transfer of the tendon of the flexor hallucis longus (FHL) muscle but it is frequently applied in cases of more than 50% debridement of the diameter of the Achilles tendon. Lengthening of the gastrocnemius muscle cannot be recommended because insufficient data are available. Tendoscopy is a promising treatment option for isolated retrocalcaneal bursitis and has shown similar success rates to open debridement with significantly lower complication rates.
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Affiliation(s)
- S F Baumbach
- Klinik für Allgemeine, Unfall‑, Hand- und Wiederherstellungschirurgie, Ludwig-Maximilians-Universität, Nußbaumstr. 20, 80336, München, Deutschland
| | - M Braunstein
- Klinik für Allgemeine, Unfall‑, Hand- und Wiederherstellungschirurgie, Ludwig-Maximilians-Universität, Nußbaumstr. 20, 80336, München, Deutschland
| | - M G Mack
- Radiologie München, München, Deutschland
| | - F Maßen
- Klinik für Allgemeine, Unfall‑, Hand- und Wiederherstellungschirurgie, Ludwig-Maximilians-Universität, Nußbaumstr. 20, 80336, München, Deutschland
| | - W Böcker
- Klinik für Allgemeine, Unfall‑, Hand- und Wiederherstellungschirurgie, Ludwig-Maximilians-Universität, Nußbaumstr. 20, 80336, München, Deutschland
| | - S Polzer
- Praxis für Hand‑, Ellenbogen- und Fußchirurgie, ATOS-Klinik Heidelberg, Heidelberg, Deutschland
| | - H Polzer
- Klinik für Allgemeine, Unfall‑, Hand- und Wiederherstellungschirurgie, Ludwig-Maximilians-Universität, Nußbaumstr. 20, 80336, München, Deutschland.
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Abstract
BACKGROUND Muscular and apophyseal injuries in the inguinal region are a common cause of groin pain in athletes. PURPOSE Frequently occurring muscular and apophyseal injuries in the groin region are described. MATERIAL AND METHODS Fundamental studies and expert recommendations are discussed. Examination protocols for routine clinical practice are presented. RESULTS The exact diagnosis and classification of muscular or apophyseal injuries in the inguinal region are the basic prerequisites for the initiation of a targeted treatment and thus crucial for the return to sport time. These injuries are occurring with increasing frequency in both professional and recreational sports. CONCLUSION In addition to the clinical examination and the history of the course of the injury, MRI plays an important role in the evaluation of muscular and apophyseal injuries in the inguinal region.
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Affiliation(s)
- M G Mack
- Radiologie München, Burgstraße 7, 80331, München, Deutschland.
| | - M Regier
- Radiologie München, Burgstraße 7, 80331, München, Deutschland
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Fischer S, Vogl TJ, Kresing M, Marzi I, Zangos S, Mack MG, Eichler K. Minimally invasive screw fixation of fractures in the thoracic spine: CT-controlled pre-surgical guidewire implantation in routine clinical practice. Clin Radiol 2016; 71:997-1004. [PMID: 27426675 DOI: 10.1016/j.crad.2016.06.112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/24/2016] [Accepted: 06/14/2016] [Indexed: 11/24/2022]
Abstract
AIM To evaluate the feasibility and accuracy of minimally invasive, transpedicular screw placement in cervicothoracic fractures with the help of computed tomography (CT)-controlled guidewires. MATERIALS AND METHODS Two hundred and ninety-three guidewires were inserted in 35 patients (42.9±21.2 years) under CT fluoroscopy (286 thoracic, seven cervical). There were 28 traumatic cases, three pathological fractures, three fractures due to infectious infiltrations, and one osteoporotic fracture. In 151 pedicles, screw placement was performed in the CT room. CT images were reviewed regarding accuracy and cortical violations using the popular 2 mm increment deviation classification of Gertzbein and Robbins. RESULTS Guidewire implantation resulted in only 28 cortical contacts. Minor encroachments of the pedicle wall by inserted screws occurred in 39.1% (59 of 151) and in 23.8% if taking unavoidable encroachments into account (30 of 59). Pedicular isthmus width correlated to cortical guidewire contacts (r=-0.449; p=0.077) and pedicle violations (all graded "A") by the inserted screws (r=-0.581; p=0.049). Total procedural duration was 138.6±44.2 minutes, representing 14.5±11.6 minutes for each pedicle, while showing a significant correlation against higher vertebral levels (r=-0.849; p=0.0002) and the occurrence of pedicle violations (r=-0.641; p=0.027). CONCLUSIONS The treatment of vertebral fractures with a guidewire-based pedicle screw insertion technique under CT imaging results in very high accuracy and a low complication rate.
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Affiliation(s)
- S Fischer
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany.
| | - T J Vogl
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - M Kresing
- Dr. Mohr and Colleagues, Carl-Ulrich Street 2, 63263 Neu-Isenburg, Germany
| | - I Marzi
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - S Zangos
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
| | - M G Mack
- Radiology Munich, Burgstraße 7, 80331 Munich, Germany
| | - K Eichler
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany
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Eichler K, Zangos S, Gruber-Rouh T, Vogl TJ, Mack MG. MR-guided laser-induced thermotherapy (LITT) in patients with liver metastases of uveal melanoma. J Eur Acad Dermatol Venereol 2014; 28:1756-60. [PMID: 24593299 DOI: 10.1111/jdv.12405] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 01/19/2014] [Indexed: 01/13/2023]
Abstract
PURPOSE Evaluation of the local tumour control rate and survival data for magnetic resonance (MR) imaging-guided laser ablation of uveal malignant melanoma liver metastases by using laser-induced interstitial thermotherapy (LITT). MATERIALS AND METHODS The LITT was performed in 18 patients with liver metastases (n = 44) from uveal malignant melanoma. All patients tolerated this intervention well. With the Kaplan-Meier method, the survival rates were calculated. Indications for the procedure were defined for patients with no more than five metastases, none of which were larger than 5 cm in diameter: The Indication for LITT treatment were recurrent liver metastases after partial liver resection (22%), locally non-resectable tumours (17%) or metastases in both liver lobes (61%). RESULTS The mean survival rate for all treated patients was 3.6 years (95% CI: 2.19, 5.06). We started the calculation on the date of diagnosis of the metastases treated with LITT. The median survival was 1.83 years; 1-year survival, 88%; 3-year survival 47%, 5-year survival 17%. Calculated after the first LITT treatment the median survival was 2.8 years (95% CI: 1.0, 5.0). 10 patients were treated by transarterial chemoembolization before LITT. CONCLUSION MR-guided LITT treatment shows a high local tumour control and survival rates in patients with liver metastases of uveal malignant melanoma.
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Affiliation(s)
- K Eichler
- Department of Diagnostic and Interventional Radiology, University of Frankfurt, Frankfurt, Germany
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Eichler KE, Zangos S, Gruber-Rouh T, Mack MG, Vogl TJ. Radiofrequenz (RF)-Kyphoplastie zur Behandlung von osteoporotischen Sacrum-Insuffizienzfrakturen. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mack MG, Lell M. Wichtiges zu traumatischen Verletzungen. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Proschek D, Tonak M, Zangos S, Mack MG, Kurth AA. Radiofrequency ablation in experimental bone metastases using a controlled and navigated ablation device. J Bone Oncol 2012; 1:63-6. [PMID: 26909257 PMCID: PMC4723322 DOI: 10.1016/j.jbo.2012.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 06/21/2012] [Accepted: 07/04/2012] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Radiofrequency ablation is a minimal invasive therapy in the treatment of bone metastases. In this study we present a new ablation system enabling an ablation in multiple directions and with an adaptable size and shape. MATERIAL AND METHODS VX-2 tumor was used for the induction of experimental bone metastases in the femur of six New Zealand white rabbits. X-ray imaging as well as CT and MRI scans before and after treatment was carried out. After detecting bone tumor, radiofrequency ablation was performed. The ablation instrument contained a 10 g bipolar, articulated extendable electrode and a proprietary generator with an impedance controlled algorithm. All bones and the soft tissue were examined histologically. RESULTS All animals developed local bone tumor. Mean duration until first osteolytic lesions on CT-scans was 48±14 days. The mean lesion area was 26 mm(2). No systemic tumor spread was seen. 6 radiofrequency procedures were carried out with a mean application time of 6 min±2:30 and an average temperature in the region of effect of 55 °C±4. MRI imaging demonstrated an ablation zone of 23±6 mm around the electrode. Histopathology showed an extensive heat necrosis with no remaining tumor cells in the ablation area. CONCLUSION Radiofrequency ablation is a quickly developing treatment option on the field of minimal invasive bone tumor therapy. The electrode enables an ablation adapted to size and shape of the metastases. Further clinical studies are necessary to test and enhance this radiofrequency system.
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Affiliation(s)
- D Proschek
- Center for Musculoskeletal Surgery, Department of Orthopaedic Surgery, University Medical Center Mainz, Germany
| | - M Tonak
- Center for Musculoskeletal Surgery, Department of Orthopaedic Surgery, University Medical Center Mainz, Germany
| | - S Zangos
- Department of Diagnostic and Interventional Radiology, University Hospital, Frankfurt, Germany
| | - M G Mack
- Department of Diagnostic and Interventional Radiology, University Hospital, Frankfurt, Germany
| | - A A Kurth
- Center for Musculoskeletal Surgery, Department of Orthopaedic Surgery, University Medical Center Mainz, Germany; Department of Diagnostic and Interventional Radiology, University Hospital, Frankfurt, Germany
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Eichler K, Zangos S, Mack MG, Hammerstingl R, Gruber-Rouh T, Gallus C, Vogl TJ. First human study in treatment of unresectable liver metastases from colorectal cancer with irinotecan-loaded beads (DEBIRI). Int J Oncol 2012; 41:1213-20. [PMID: 22842404 PMCID: PMC3583653 DOI: 10.3892/ijo.2012.1572] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Accepted: 05/29/2012] [Indexed: 12/27/2022] Open
Abstract
The objective of this pilot clinical study was to assess the safety, technical feasibility, pharmacokinetic (PK) profile and tumour response of DC Bead™ with irinotecan (DEBIRI™) delivered by intra-arterial embolisation for the treatment of metastatic colorectal cancer. Eleven patients with unresectable liver metastases from CRC, tumour burden <30% of liver volume, adequate haematological, liver and renal function, performance status of <2 were included in this study. Patients received up to 4 sessions of TACE with DEBIRI at 3-week intervals. Feasibility of the procedure, safety and tumour response were assessed after each cycle. PK was measured after the first cycle. Patients were followed up to 24 weeks. Only mild to moderate adverse events were observed. DEBIRI is a technically feasibile procedure; no technical complications were observed. Average Cmax for irinotecan and SN-38 was 194 ng/ml and 16.7 ng/ml, respectively, with average t½ of 4.6 h and 12.4 h following administration of DEBIRI. Best overall response during the study showed disease control in 9 patients (2 patients with partial response and 7 with stable disease, overall response rate of 18%). Our study shows that transarterial chemoembolisation with irinotecan-loaded DC beads (DEBIRI) is safe, technically feasible and effective with a good PK profile.
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Affiliation(s)
- K Eichler
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Johann Wolfgang Goethe-University, D-60590 Frankfurt, Germany.
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Larson MC, Kerl MJ, Bauer RW, Zhang S, Block T, Zangos S, Hammerstingl R, Vogl TJ, Mack MG. Vergleich zwischen Echtzeit MRT- Bildgebung mit radialer K- Raumauslesung und Videofluoroskopie nach erfolgter chirurgischer Korrektur bei velopharyngealer Dysfunktion. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Vogl TJ, Dommermuth A, Eichler K, Zangos S, Mack MG. MRT-gestützte laserinduzierte Thermotherapie (LITT) bei Patienten mit kolorektaler Lebermetastasierung: Analyse des Langzeitüberlebens, des progressionsfreien Intervalls und prognostische Faktoren. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Mack MG. Entzündliche Läsionen des Mittelgesichts. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1310926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Eichler K, Mack MG, Zangos S, Lehnert T, Thalhammer A, Jacobi V, Vogl TJ. Klinische Ergebnisse bei der CT-gesteuerten Anlage einer Perikarddrainage: Ergebnisse der letzten 4 Jahre. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Proschek D, Kafchitsas K, Kurth AA, Mattyasovszky SG, Betz S, Ludwig HR, Mack MG. The quality of applied bone cement depends on the chemical composition of the application system. Eur Surg Res 2011; 47:189-95. [PMID: 21986340 DOI: 10.1159/000330450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Accepted: 06/15/2011] [Indexed: 11/19/2022]
Abstract
UNLABELLED The exothermal reaction of polymethylmethacrylate leads to an extensive interaction between bone cement and the synthetic material of the application system. This chemical reaction changes the structure of the cement and might generate air inclusions. METHODS AND MATERIALS Two application systems for bone cement made of polycarbonate (PC) and polypropylene (PP) were evaluated. The application systems were mounted in a testing unit. The testing device injects a defined amount of bone cement with a certain pressure. After the injection procedure a microscopic examination was carried out. RESULTS There were no differences in the size and the design of the used syringes. Forty procedures were carried out. The time frame for application of the cement was 5 min in the PC group and 9 min in the PP group. There was a remarkable interaction between the plastics and the cement with the appearance of numerous air inclusions in the PC group. Barely any interaction was found in the PP group. CONCLUSION Application systems made of PP enable a prolonged application time and a reduced number of air inclusions. Further research, especially on a molecular level as well as material tests on the quality of the applied bone cement, should be carried out.
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Affiliation(s)
- D Proschek
- Center for Musculoskeletal Surgery, Department of Orthopedic Surgery, University Medical Center, Mainz, Germany. proschek @ arcor.de
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Tawfik AM, Kerl JM, Razek AA, Bauer RW, Nour-Eldin NE, Vogl TJ, Mack MG. Image quality and radiation dose of dual-energy CT of the head and neck compared with a standard 120-kVp acquisition. AJNR Am J Neuroradiol 2011; 32:1994-9. [PMID: 21903909 DOI: 10.3174/ajnr.a2654] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE DECT offers additional image datasets with potential benefits, but its use for H&N imaging is not justified unless image quality is preserved without increased radiation dose. The aim of this work was to compare image quality and radiation dose between a DE-derived WA image dataset and a standard SECT acquisition of the H&N. MATERIALS AND METHODS Thirty-two patients underwent DECT of the H&N (tube voltages 80 and Sn140 kVp) and were compared with the last 32 patients who underwent standard SECT (120 kVp) on the same dual-source scanner. WA images from the 2 DE tubes were compared with images obtained with an SE mode. Radiation doses and attenuation measurements of the internal jugular vein, submandibular gland, and sternomastoid and tongue muscles were compared. Objective image noise was compared at 5 anatomic levels. Two blinded readers compared subjective image quality by using 5-point grading scales. RESULTS CTDI(vol) was 12% lower with DE than with SECT, a difference of 1.5 mGy, (P < .0001). Objective noise was not significantly different between DE and SECT at any of the anatomic levels (P > .05). No significant differences in attenuation measurements were observed between DE and SECT (P > .05). No significant differences in subjective image quality scores were observed between DE and SECT at any of the 5 anatomic levels (P > .05). CONCLUSIONS DE-derived WA images of the H&N are equivalent to standard SE acquisitions and thus can be used for routine diagnostic purposes. Multiple additional image datasets can be obtained with no radiation dose penalty.
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Affiliation(s)
- A M Tawfik
- Department of Diagnostic and Interventional Radiology, Johan Wolfgang Goethe University Hospital, Frankfurt am Main, Germany.
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Kerl JM, Tawfik A, Bauer RW, Vogl TJ, Mack MG. Dual Energy CT von HNO-Tumoren: Verbesserte Tumordifferenzierung und Bildqualität durch die Verwendung von gewichteten Datensätzen. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Schell B, Bauer RW, Beeres M, Siebenhandl P, Kerl JM, Vogl TJ, Mack MG. Strahlendosis bei der Dual-Source Computertomographie der Nasennebenhöhlen mit hohem Tischvorschub. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lehnert T, Naguib N, Nour-Eldin MN, Korkusuz H, Mack MG, Vogl TJ. Dosisreduktion und Vorfilterung in der digitalen Projektionsradiographie: Auswirkungen auf die Bildqualität. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mack MG. Kopf/Hals - Basiswissen. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1278725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mack MG, Mayer F. Akademie-Online - Das Weiterbildungsportal der DRG. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1278801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zangos S, Eichler K, Mack MG, Mulert-Ernst R, Solbach C, Schwedler K, Müller C, Vogl TJ. Beurteilung der Sichtbarkeit kommerzieller Markierung-Clips für Brustinterventionen in den konventionellen Untersuchungsmethoden. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vogl TJ, Naguib N, Nour-Eldin MN, Mack MG, Zangos S, Jost A. Repetitive transarterielle Chemoembolisation bei nicht resektablen Lebermetastasen des kolorektalen Karzinoms: Verschiedene Chemotherapieprotokolle mit nachfolgender MR-gesteuerter LITT. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zangos S, Eichler K, Mack MG, Schell B, Heichenreich M, Heidenreich R, Vogl TJ. C-Bogen Flachdetektor-Computertomographie: Umgebungsäquivalentdosis verschiedener Untersuchungsprogramme bei abdominellen Eingriffen. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bodelle B, Zangos S, Hübner F, Gruber-Rouh T, Eichler K, Mack MG, Schell B, Beeres M, Vogl TJ. MR-gesteuerte transgluteale Biopsie der Prostata bei Patienten mit Verdacht auf ein Prostatakarzinom. ROFO-FORTSCHR RONTG 2011. [DOI: 10.1055/s-0031-1279117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vogl TJ, Mack MG, Eichler K, Zangos S, Naguib NN, Gruber-Rouh T. [Chemoperfusion and embolization in the treatment of liver metastases]. ROFO-FORTSCHR RONTG 2010; 183:12-23. [PMID: 21113865 DOI: 10.1055/s-0029-1245880] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Presentation of techniques and procedures for regional chemotherapy in the treatment of unresectable liver metastases from different primary tumors as a modality of interdisciplinary therapy management. Such transarterial therapy methods include hepatic arterial infusion (HAI), transarterial chemoembolization (TACE), chemoembolization with cytostatic-loaded microspheres (DEBs), transarterial embolization (TAE) and selective internal radiation therapy (SIRT). Regional chemotherapy procedures in the treatment of liver metastases represent a minimally invasive treatment option that can be successfully combined with surgical resection and/or radiofrequency (RFA), laser-induced thermotherapy (LITT), microwave ablation (MWA). These procedures allow optimization of the local control rate with strictly intrahepatic processes and lead to increased survival rates without any quality of life restriction.
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Affiliation(s)
- T J Vogl
- Institut für Diagnostische und Interventionelle Radiologie, J.-W.-Goethe-Universität Frankfurt.
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Zangos S, Eichler K, Thalhammer A, Mack MG, Marquardt F, Vogl TJ. [MR-guided interventions of the prostate gland: a literature review]. ROFO-FORTSCHR RONTG 2010; 182:947-53. [PMID: 20725875 DOI: 10.1055/s-0029-1245627] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
In recent years MR imaging has played an increasingly important role in the diagnosis and treatment of prostate cancer. MR imaging of the prostate allows clear delineation of the anatomic structures and prostate tumors using T 2-weighted images combined with spectroscopy and dynamic examinations. The advantages of MRI make it possible to perform interventions, like biopsies, brachytherapy or different local therapies of the prostate gland. MRI robotic assistance will improve the accuracy of the interventions. Due to the advantages of MR imaging, MR-guided prostate interventions will play a greater role in the future.
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Affiliation(s)
- S Zangos
- Institut für Diagnostische und Interventionelle Radiologie, J.-W.-Goethe-Universität Frankfurt.
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Zangos S, Eichler K, Thalhammer A, Mack MG, Vogl T. Einsatz von neuen Substanzen und Verfahren in der regionalen Chemotherapie der Leber. ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Mack MG. Technik und Indikation: RFA und Laser. ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Mack MG. Schmerztherapie der Kopf, Hals- und Thoraxregion. ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bisdas S, Rumboldt Z, Surlan-Popovic K, Baghi M, Koh TS, Vogl TJ, Mack MG. Perfusion CT in squamous cell carcinoma of the upper aerodigestive tract: long-term predictive value of baseline perfusion CT measurements. AJNR Am J Neuroradiol 2009; 31:576-81. [PMID: 19875471 DOI: 10.3174/ajnr.a1852] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE PCT studies hold short-term predictive value in patients treated with chemoradiotherapy. Our aim was to examine the long-term predictive value of baseline PCT studies for local tumor control and overall survival in SCCA of the upper aerodigestive tract treated with chemoradiotherapy. MATERIALS AND METHODS Eighty-four patients with advanced SCCA underwent PCT followed by concomitant chemoradiation. The acquired perfusion maps represented BF, BV, MTT, and PS. Visual analysis of the parametric maps for identification of tumor perfusion patterns was conducted. ROC curves, t tests, and Kaplan-Meier survival curves were plotted for local disease control and overall survival. RESULTS The median time of local tumor control was 24 months. The BF and PS values were significantly higher in patients who had no recurrence than in those with local failure (P < or = .02). The BF and PS were predictive (P < or = .0006) but BV and MTT held no significant predictive values for local tumor control. The patients with high BF and PS had a longer local tumor control than the patients with hypoperfused tumors (P = .0007). A visually detected BF-BV mismatch had a sensitivity/specificity of 63%/66% (P = .03) and 59%/69% (P = .03) for local tumor control and OS, respectively. Patients without mismatch lived significantly longer than patients with mismatch (P = .01). CONCLUSIONS BF, PS, and mismatch of BF-BV are significant predictors of local tumor control after chemoradiation in SCCA of the upper aerodigestive tract.
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Affiliation(s)
- S Bisdas
- Department of Neuroradiology, Eberhard Karls University, Tübingen, Germany.
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Vogl TJ, Mack MG, Scholz WR, Müller P, Weinhold N, Philipp C, Bouttcher H, Roggan A, Felix R. MR imaging-guided laser-induced thermotherapy. MINIM INVASIV THER 2009. [DOI: 10.3109/13645709609153298] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Mack MG, Vogl TJ, Eichler K, Müller P, Straub R, Roggan A, Felix R. Laser-induced thermoablation of tumours of the head and neck under MR tomographic control. MINIM INVASIV THER 2009. [DOI: 10.3109/13645709809152906] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Bisdas S, Rumboldt Z, Wagenblast J, Baghi M, Koh TS, Hambek M, Vogl TJ, Mack MG. Response and progression-free survival in oropharynx squamous cell carcinoma assessed by pretreatment perfusion CT: comparison with tumor volume measurements. AJNR Am J Neuroradiol 2009; 30:793-9. [PMID: 19351906 PMCID: PMC7051758 DOI: 10.3174/ajnr.a1449] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2008] [Accepted: 11/10/2008] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Perfusion CT (PCT) provides a rapid, reliable, and non-invasive technique for assessing tumor vascularity. The purpose of this study was to assess whether pretreatment dynamic perfusion CT (PCT) may predict response to induction chemotherapy and midterm progression-free survival (PFS) in advanced oropharynx squamous cell carcinoma (SCCA) and to compare the results with those derived by tumor volume measurements. MATERIALS AND METHODS Nineteen patients underwent routine contrast-enhanced CT (CECT), pretreatment PCT, and conventional endoscopy. Tumor response was determined according to radiologic (RECIST) criteria. The PCT parameters, tumor volume, radiologic response, and PFS were analyzed with use of Cox-proportional hazards model, receiver operating characteristic (ROC), and Kaplan-Meier analysis. RESULTS The baseline blood flow (BF), blood volume (BV), and permeability surface area product (PS) were significantly higher, whereas mean transit time (MTT) was significantly lower in the responders than in the nonresponders (P < or = .002). BV showed 100% sensitivity, MTT and PS had the highest specificity (100%), and BF showed 84.2% sensitivity and 66.7% specificity for prediction of tumor response after induction chemotherapy. The pretreatment tumor volume correlated with PFS in the pooled patients group (r = 0.4; P < .0001), whereas postinduction tumor volume correlated significantly with PFS in the responders and nonresponders (r = 0.22-0.64; P < or = .006). Pretreatment tumor volume (P = .0001) and BF (P = .001) were significant predictors for PFS. CONCLUSIONS Pretreatment PCT parameters may predict response after induction chemotherapy. Tumor volume and BF values may predict PFS in patients with advanced oropharyngeal SCCA.
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Affiliation(s)
- S Bisdas
- Department of Radiology, Johann Wolfgang Goethe University, Frankfurt, Germany.
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Mack MG. Schädelbasisinfiltrationen. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1221166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mack MG, Eichler K, Zangos S, Lehnert T, Vogl TJ. Long-term results of MR-guided laser ablation (LITT) of liver metastases of breast cancer. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.1037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Proschek D, Mack MG, Kurth AA, Proschek P, Martin B, Hansmann ML, Vogl TJ. Radiofrequency ablation of experimental bone metastases in nude rats. Anticancer Res 2008; 28:879-885. [PMID: 18507032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
PURPOSE Animal models are indispensable to investigate bone metastasis and to test different preclinical therapy options. Radiofrequency ablation is an upcoming technique for palliating pain from bone metastases. The aim of this study was to generate osteolytic lesions and to enable a technique to achieve access to the bone to successfully carry out radiofrequency ablation. MATERIALS AND METHODS Human breast cancer cell line MDA-MB-231 (10(5) tumor cells) was implanted into the femur of 10 nude rats using a drill hole after arthrotomy of the knee joint and opening of the femur through the notch. Weekly CT- and MRI-scans were performed to document number and size of bone metastases. Radiofrequency ablation (22G bipolar and impedance-controlled RF-applicator, 2-4 Watt, 3 min application time) was carried out. One week after RFA, the animals were sacrificed and macroscopic and histological examination followed. For statistical analysis, paired comparison procedures were used. RESULTS Inoculation of the tumor cells was well tolerated. The mean time of the surgical procedure was 6 minutes. All animals developped local bone metastases. Mean time to metastasis was 8 weeks (range 7-10 weeks) after tumor cell implantation. No leakage of tumor cells and no soft part metastases occurred. Radiofrequency ablation was performed without complications. Imaging showed a complete ablation of the bone tumor in all rats. Histological findings confirmed a circular necrosis with an extensive destruction of tumor cells leaving a necrosis cavity. CONCLUSION The experimental model presented here describes the first time the ability to carry out radiofrequency ablation in nude rats with intrafemoral induced osteolytic metastases of human breast cancer. RFA in human breast cancer cell line in nude rats is a feasible and useful possibility to evaluate and to test different RF-procedures. Additional treatment options like local chemotherapy or chemoembolization can be performed.
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Affiliation(s)
- D Proschek
- Department of Orthopaedic and Trauma Surgery, Friedrichsheim, University of Frankfurt, Frankfurt am Main, Germany.
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Abstract
In recent years MR imaging has played an increasingly important role in the diagnosis and treatment of prostate cancer. MR imaging of the prostate allows a clear delineation of the anatomic structures and prostate tumors when performing interventions such as biopsies, brachytherapy or thermal therapy of the prostate gland. MRI robotic assistance will improve the accuracy of the interventions. Due to the advantages of MR imaging MR-guided prostate interventions will play an increasing role in future.
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Affiliation(s)
- S Zangos
- Department of Diagnostic and Interventional Radiology, University Hospital Frankfurt, Johann Wolfgang Goethe-University, Frankfurt/Main, Germany.
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Mack MG, Maier B, Laurer H, Ploss C, Eichler K, Thalhammer A, Marzi I, Vogl T. CT-assistierte Versorgung von Patienten mit instabilen Frakturen der Brustwirbelsäule. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Proschek P, Proschek D, Mack MG, Vogl T. Radiofrequenz-Ablation von Knochenmetastasen der Humanen Mamma-Karzinom-Zelllinie MDA-MB-231 in Nacktratten. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Lehnert T, Berg-Schlosser F, Drieske M, Balzer JO, Jacobi V, Mack MG, Vogl T. CT-gesteuerte intradiskale und intraforaminale Ozon/Sauerstoffinjektion: Eine kausale Therapie des bandscheibenprolapsassoziierten Schmerzsyndroms an 110 Patienten. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Mack MG, Eichler K, Vogl T. Thermoablation von primären und sekundäre Lungentumoren. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Zangos S, Eichler K, Müller C, Khan V, Burkhard T, Lehnert T, Mack MG, Vogl T. Ganzkörper-MR-Angiographie mittels kontinuierlichem Tischvorschub (TimCT-Technologie) und Einzelinjektionsprotokoll. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Eichler K, Mack MG, Zangos S, Lehnert T, Khan V, Hammerstingl R, Vogl T. Erste Ergebnisse der lokalen transarteriellen Chemoembolisation (TACE) mit Irinotecan geladenen Microspheren (DC Bead™) bei Patienten mit Lebermetastasen eines Kolorektalen Karzinoms. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Proschek P, Proschek D, Mack MG, Vogl T. Induktion von lokalen Knochenmetastasen der Humanen Mamma-Karzinom-Zelllinie MDA-MB-231 in Nacktratten. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Eichler K, Mack MG, Zangos S, Lehnert T, Vogl T. Wertigkeit der perkutanen Thermoablation mittels LITT bei Lebermetastasen eines Malignen Melanoms oder Aderhautmelanoms. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Proschek D, Mack MG, Vogl T, Geiger F. Dosisreduktion durch Sabre Source-navigierte Facettengelenks-Infiltration: Eine prospektive Pilotstudie an 60 Patienten. ROFO-FORTSCHR RONTG 2008. [DOI: 10.1055/s-2008-1073473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Eichler K, Mack MG, Balzer JO, Zangos S, Dufas T, Vogl TJ. Tolerabilität und Effektivität intraarterieller Chemoperfusion mit Irinotecan bei Patienten mit Lebermetastasen eines Kolorektalen Karzinoms: Phase 1 Studie. ROFO-FORTSCHR RONTG 2007. [DOI: 10.1055/s-2007-976835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bisdas S, Baghi M, Chambron-Pinho N, Smolarcz A, Hübner F, Balzer JO, Herzog C, Mack MG, Vogl TJ. Wertigkeit der Protonen MR-Spektroskopie von extrakraniellen Kopf- und Hals-Tumoren: in vivo Studie. ROFO-FORTSCHR RONTG 2007. [DOI: 10.1055/s-2007-976811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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