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Talapatra K, Chitkara G, Murali-Nanavati S, Gupte A, Bardeskar NS, Behal S, Shaikh M, Atluri P. Practice of Tumor Bed Boost in Patients after Oncoplastic Breast-Conserving Surgery. Indian J Surg Oncol 2024; 15:63-70. [PMID: 38511033 PMCID: PMC10948658 DOI: 10.1007/s13193-023-01824-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 09/26/2023] [Indexed: 03/22/2024] Open
Abstract
The practice of boost to the tumor bed after treatment with oncoplastic breast-conserving surgery (BCS) remains variable. Using a survey, the present study evaluated the current practice of tumor bed boost administered in women after oncoplastic BCS. Actively practicing radiation oncologists across India were sent a questionnaire on the practice of adjuvant whole-breast radiotherapy and tumor bed boost after oncoplastic BCS via email and encouraged to participate. Of the 54 radiation oncologists who participated, most (98.1%) used a linear accelerator for radiotherapy. Hypofractionation was preferred by 59.26%, standard fractionation by 7.41%, and the remaining selected the fractionation strategy based on various patient factors. In addition, 83.33% participants reported that they always planned tumor boost, 51.85% preferred photons for the boost, and 75.93% administered sequential boost. The most common dose for the boost was 12.5 Gy in five fractions (40.74%). Most participants (77.78%) revealed that they used a combination of methods for identifying the tumor bed. With respect to clip placement, most surgeons (96%) at the participants' centers placed ≥ 4 clips at the tumor site, with both the base and margins being preferred by surgeons (81.48%) for placement. Finally, 12.96% participants revealed that the surgeons always involved them during surgical planning, whereas 7.4% participants reported that they always included the surgeons during radiotherapy planning, suggesting that radiation oncologists and oncoplastic surgeons do not involve each other during surgical and radiotherapy planning, possibly leading to suboptimal treatment. This may be attributed to the absence of guidelines regarding boost practices after oncoplastic BCS.
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Affiliation(s)
- Kaustav Talapatra
- Nanavati Max Institute of Cancer Care, Nanavati Max Super Speciality Hospital, Mumbai, 400056 India
| | - Garvit Chitkara
- Nanavati Max Institute of Cancer Care, Nanavati Max Super Speciality Hospital, Mumbai, 400056 India
| | - Sridevi Murali-Nanavati
- Nanavati Max Institute of Cancer Care, Nanavati Max Super Speciality Hospital, Mumbai, 400056 India
| | - Ajinkya Gupte
- Nanavati Max Institute of Cancer Care, Nanavati Max Super Speciality Hospital, Mumbai, 400056 India
| | - Nikhil S. Bardeskar
- Nanavati Max Institute of Cancer Care, Nanavati Max Super Speciality Hospital, Mumbai, 400056 India
| | - Shruti Behal
- Nanavati Max Institute of Cancer Care, Nanavati Max Super Speciality Hospital, Mumbai, 400056 India
| | - Muzammil Shaikh
- Nanavati Max Institute of Cancer Care, Nanavati Max Super Speciality Hospital, Mumbai, 400056 India
| | - Pooja Atluri
- Nanavati Max Institute of Cancer Care, Nanavati Max Super Speciality Hospital, Mumbai, 400056 India
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Xie X, Song Y, Ye F, Wang S, Yan H, Zhao X, Dai J. Prior information guided auto-segmentation of clinical target volume of tumor bed in postoperative breast cancer radiotherapy. Radiat Oncol 2023; 18:170. [PMID: 37840132 PMCID: PMC10577969 DOI: 10.1186/s13014-023-02355-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 09/25/2023] [Indexed: 10/17/2023] Open
Abstract
BACKGROUND Accurate delineation of clinical target volume of tumor bed (CTV-TB) is important but it is also challenging due to surgical effects and soft tissue contrast. Recently a few auto-segmentation methods were developed to improve the process. However, those methods had comparatively low segmentation accuracy. In this study the prior information was introduced to aid auto-segmentation of CTV-TB based on a deep-learning model. METHODS To aid the delineation of CTV-TB, the tumor contour on preoperative CT was transformed onto postoperative CT via deformable image registration. Both original and transformed tumor contours were used for prior information in training an auto-segmentation model. Then, the CTV-TB contour on postoperative CT was predicted by the model. 110 pairs of preoperative and postoperative CT images were used with a 5-fold cross-validation strategy. The predicted contour was compared with the clinically approved contour for accuracy evaluation using dice similarity coefficient (DSC) and Hausdorff distance. RESULTS The average DSC of the deep-learning model with prior information was improved than the one without prior information (0.808 vs. 0.734, P < 0.05). The average DSC of the deep-learning model with prior information was higher than that of the traditional method (0.808 vs. 0.622, P < 0.05). CONCLUSIONS The introduction of prior information in deep-learning model can improve segmentation accuracy of CTV-TB. The proposed method provided an effective way to automatically delineate CTV-TB in postoperative breast cancer radiotherapy.
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Affiliation(s)
- Xin Xie
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No 17, Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
- Clinical Oncology School of Fujian Medical University, Fujian Cancer Hospital, No 420, Fuma Road, Jinan District, Fuzhou, 350011, China
| | - Yuchun Song
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No 17, Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Feng Ye
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No 17, Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Shulian Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No 17, Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China
| | - Hui Yan
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No 17, Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China.
| | - Xinming Zhao
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No 17, Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China.
| | - Jianrong Dai
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No 17, Panjiayuan Nanli, Chaoyang District, Beijing, 100021, China.
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Vordermark D, Höller U. The role of radiotherapy in the updated German S2k guideline for management of Merkel cell carcinoma. Strahlenther Onkol 2023; 199:433-435. [PMID: 36976298 PMCID: PMC10133063 DOI: 10.1007/s00066-023-02068-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 02/21/2023] [Indexed: 03/29/2023]
Abstract
Merkel cell carcinoma (MCC) is a radiosensitive tumor and the role of radiotherapy in the management of this disease was newly defined in the recently published update of the S2k guideline on Merkel cell carcinoma of the Association of Scientific Medical Societies in Germany (AWMF). While adjuvant radiotherapy of the tumor bed is broadly recommended, irradiation of the regional nodal region can be performed in patients with negative sentinel lymph nodes and high-risk factors. In patients with positive sentinel lymph nodes, it is an alternative to completion lymphadenectomy. The standard dose for adjuvant radiotherapy remains 50 Gy.
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Affiliation(s)
- Dirk Vordermark
- Dept. of Radiation Oncology, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.
- Universitätsklinik für Strahlentherapie, Universitätsklinikum Halle/Saale, Ernst-Grube-Str. 40, 06120, Halle/Saale, Germany.
| | - Ulrike Höller
- German Society of Radiation Oncology DEGRO, Berlin, Germany
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Zhang M, Liao J, Jia Z, Qin C, Zhang L, Wang H, Liu Y, Jiang C, Han M, Li J, Wang K, Wang X, Bu H, Yao J, Liu Y. High Dynamic Range Dual-Modal White Light Imaging Improves the Accuracy of Tumor Bed Sampling After Neoadjuvant Therapy for Breast Cancer. Am J Clin Pathol 2023; 159:293-303. [PMID: 36799717 DOI: 10.1093/ajcp/aqac167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 12/01/2022] [Indexed: 02/18/2023] Open
Abstract
OBJECTIVES Accurate evaluation of residual cancer burden remains challenging because of the lack of appropriate techniques for tumor bed sampling. This study evaluated the application of a white light imaging system to help pathologists differentiate the components and location of tumor bed in specimens. METHODS The high dynamic range dual-mode white light imaging (HDR-DWI) system was developed to capture antiglare reflection and multiexposure HDR transmission images. It was tested in 60 specimens of modified radical mastectomy after neoadjuvant therapy. We observed the differential transmittance among tumor tissue, fibrosis tissue, and adipose tissue. RESULTS The sensitivity and specificity of HDR-DWI were compared with x-ray or visual examination to determine whether HDR-DWI was superior in identifying tumor beds. We found that tumor tissue had lower transmittance (0.12 ± 0.03) than fibers (0.15 ± 0.04) and fats (0.27 ± 0.07) (P < .01). CONCLUSIONS HDR-DWI was more sensitive in identifying fiber and tumor tissues than cabinet x-ray and visual observation (P < .01). In addition, HDR-DWI could identify more fibrosis areas than the currently used whole slide imaging did in 12 samples (12/60). We have determined that HDR-DWI can provide more in-depth tumor bed information than x-ray and visual examination do, which will help prevent diagnostic errors in tumor bed sampling.
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Affiliation(s)
- Meng Zhang
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jun Liao
- AI Lab, Tencent, Shenzhen, China
| | - Zhanli Jia
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | | | - Lingling Zhang
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Han Wang
- AI Lab, Tencent, Shenzhen, China
| | - Yao Liu
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | | | - Mengxue Han
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jinze Li
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Kun Wang
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xinran Wang
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Hong Bu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, China
| | | | - Yueping Liu
- Department of Pathology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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Cantaloube M, Boucekine M, Balossier A, Muracciole X, Meyer M, Delsanti C, Carron R, Beltaifa YM, Figarella-Branger D, Regis J, Padovani L. Stereotactic radiosurgery for post operative brain metastasic surgical cavities: a single institution experience. Radiat Oncol 2022; 17:160. [PMID: 36163026 PMCID: PMC9513906 DOI: 10.1186/s13014-022-02118-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The standard therapy for brain metastasis was surgery combined with whole brain radiotherapy (WBRT). The latter is however, associated with important neurocognitive toxicity. To reduce this toxicity, postoperative stereotactic radiosurgery (SRS) is a promising technique. We assessed the efficacy and the tolerance to postoperative Gamma Knife radiosurgery (GK) on the tumor bed after resection of brain metastases. METHODS Between February 2011 and December 2016, following macroscopic complete surgical resection, 64 patients and 65 surgical cavities were treated by GK in our institution. The indication for adjuvant radiosurgery was a multidisciplinary decision. The main assessment criteria considered in this study were local control, intracranial metastasis-free survival (ICMFS), overall survival and toxicity. RESULTS Median follow-up: 11.1 months. Median time between surgery and radiosurgery: 35 days. Median dose was 20 Gy prescribed to the 50% isodose line, for a median treated volume of 5.6 cc. Four patients (7%) suffered from local recurrence. Local recurrence-free, intracranial recurrence-free and overall survival at 1 year were 97.5%, 57.6% and 62.4% respectively. In total, 23 patients (41%) suffered from intracranial recurrence outside the tumor bed. In univariate analysis: concomitant GK treatment of multiple lesions and the tumor bed was associated with a decrease in ICMFS (HR = 1.16 [1.005-1.34] p = 0.04). In multivariate analysis: a non-lung primary tumor was significantly associated with a decrease in ICMFS (HR = 8.04 [1.82-35.4] p = 0.006). An increase in performance status (PS) and in the initial number of cerebral metastases significantly reduced overall survival (HR = 5.4 [1.11-26.3] p = 0.037, HR = 2.7 [1.004-7.36] p = 0.049, respectively) and One radiation necrosis histologically proven. CONCLUSION Our study confirmed that postoperative GK after resection of cerebral metastases is an efficient and well-tolerated technique, to treat volumes of all sizes (0.8 to 40 cc). Iterative SRS or salvage WBRT can be performed in cases of intracranial relapse, postponing WBRT with its potential side effects.
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Affiliation(s)
- Marie Cantaloube
- Radiotherapy Department, Assistance Publique Des Hôpitaux de Marseille, Marseille, France.,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France
| | - Mohamed Boucekine
- Unity of Research EA3279, Aix-Marseille Université, Marseille, France.,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France
| | - Anne Balossier
- Department of Functional and Stereotactic Neurosurgery and Radiosurgery, Timone University Hospital, Marseille, France.,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France
| | - Xavier Muracciole
- Radiotherapy Department, Assistance Publique Des Hôpitaux de Marseille, Marseille, France.,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France
| | - Mickael Meyer
- Department of Neurosurgery, Hôpital de La Timone, Assistance Publique-Hôpitaux de Marseille, Marseille, France.,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France
| | - Christine Delsanti
- Department of Functional and Stereotactic Neurosurgery and Radiosurgery, Timone University Hospital, Marseille, France.,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France
| | - Romain Carron
- Department of Functional and Stereotactic Neurosurgery and Radiosurgery, Timone University Hospital, Marseille, France.,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France
| | - Yassine Mohamed Beltaifa
- Department of Functional and Stereotactic Neurosurgery and Radiosurgery, Timone University Hospital, Marseille, France.,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France
| | - Domnique Figarella-Branger
- Neuropathology Department, Assistance Publique Des Hôpitaux de Marseille, Marseille, France.,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France
| | - Jean Regis
- Department of Functional and Stereotactic Neurosurgery and Radiosurgery, Timone University Hospital, Marseille, France.,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France
| | - Laetitia Padovani
- Radiotherapy Department, Assistance Publique Des Hôpitaux de Marseille, Marseille, France. .,Neuropathology Department, Assistance Publique Des Hôpitaux de Marseille, Marseille, France. .,CRCM Inserm UMR1068, CNRS UMR7258 AMU UM105, Genome Instability and Carcinogenesis, Institut Paoli-Calmettes, Marseille, France. .,Radiotherapy Department, Assistance Publique des Hôpitaux de Marseille, marseille, France.
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Steybe D, Poxleitner P, Voss PJ, Metzger MC, Schmelzeisen R, Bamberg F, Kim S, Russe MF. Evaluation of computed tomography settings in the context of visualization and discrimination of low dose injections of a novel liquid soft tissue fiducial marker in head and neck imaging. BMC Med Imaging 2021; 21:157. [PMID: 34702192 PMCID: PMC8549337 DOI: 10.1186/s12880-021-00689-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 10/18/2021] [Indexed: 11/25/2022] Open
Abstract
Background Intraoperative incorporation of radiopaque fiducial markers at the tumor resection surface can provide useful assistance in identifying the tumor bed in postoperative imaging for RT planning and radiological follow-up. Besides titanium clips, iodine containing injectable liquid fiducial markers represent an option that has emerged more recently for this purpose. In this study, marking oral soft tissue resection surfaces, applying low dose injections of a novel Conformité Européenne (CE)-marked liquid fiducial marker based on sucrose acetoisobutyrate (SAIB) and iodinated SAIB (x-SAIB) was investigated. Methods Visibility and discriminability of low dose injections of SAIB/x-SAIB (10 µl, 20 µl, 30 µl) were systematically studied at different kV settings used in clinical routine in an ex-vivo porcine mandible model. Transferability of the preclinical results into the clinical setting and applicability of DE-CT were investigated in initial patients.
Results Markers created by injection volumes as low as 10 µl were visible in CT imaging at all kV settings applied in clinical routine (70–120 kV). An injection volume of 30 µl allowed differentiation from an injection volume of 10 µl. In a total of 118 injections performed in two head and neck cancer patients, markers were clearly visible in 83% and 86% of injections. DE-CT allowed for differentiation between SAIB/x-SAIB markers and other hyperdense structures. Conclusions Injection of low doses of SAIB/x-SAIB was found to be a feasible approach to mark oral soft tissue resection surfaces, with injection volumes as low as 10 µl found to be visible at all kV settings applied in clinical routine. With the application of SAIB/x-SAIB reported for tumors of different organs already, mostly applying relatively large volumes for IGRT, this study adds information on the applicability of low dose injections to facilitate identification of the tumor bed in postoperative CT and on performance of the marker at different kV settings used in clinical routine.
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Affiliation(s)
- David Steybe
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, Albert-Ludwigs University Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany.
| | - Philipp Poxleitner
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, Albert-Ludwigs University Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany.,Berta-Ottenstein-Programme for Clinician Scientists, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Pit Jacob Voss
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, Albert-Ludwigs University Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Marc Christian Metzger
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, Albert-Ludwigs University Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Rainer Schmelzeisen
- Department of Oral and Maxillofacial Surgery, Medical Center - University of Freiburg, Faculty of Medicine, Albert-Ludwigs University Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Fabian Bamberg
- Department of Diagnostic and Interventional Radiology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Suam Kim
- Department of Diagnostic and Interventional Radiology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Maximilian Frederik Russe
- Department of Diagnostic and Interventional Radiology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
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Jiang J, Chen J, Li W, Li Y, Chen Y, Zhang Z, Liu C, Han D, Sun H, Li B, Huang W. Inter-observer variations of the tumor bed delineation for patients after breast conserving surgery in preoperative magnetic resonance and computed tomography scan fusion. BMC Cancer 2021; 21:838. [PMID: 34284752 DOI: 10.1186/s12885-021-08546-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 07/07/2021] [Indexed: 11/28/2022] Open
Abstract
Purpose Tumor bed (TB) delineation based on preoperative magnetic resonance imaging (pre-MRI) fused with postoperative computed tomography (post-CT) were compared to post-CT only to define pre-MRI may aid in improving the accuracy of delineation. Methods and materials The pre-MRI imaging of 10 patients underwent radiotherapy (RT) after breast conserving surgery (BCS) were reviewed. Post-CT scans were acquired in the same prone position as pre-MRI. Pre-MRI and post-CT automatically match and then manual alignment was given to enhance fusion consistency. Three radiation oncologists and 2 radiologists delineated the clinical target volume (CTV) for CT-based. The gross target volume (GTV) of pre-MRI-based was determined by the volume of tumor acquired with 6 sequences: T1, T2, T2W-SPAIR, DWI, dyn-eTHRIVE and sdyn-eTHRIVE, expended 10 mm to form the CTV-pre-MRI. Planning target volume (PTV) for each sequence was determined by CTV extended 15 mm, trimmed to 3 mm from skin and the breast-chest wall interface. The variability of the TB delineation were developed as follows: the mean volume, conformity index (CI) and dice coefficient (DC). Results The mean volumes of CTV and PTV delineated with CT were all larger than those with pre-MRI. The lower inter-observer variability was observed from PTV, especially in sdyn-eTHRIVE in all sequences. For each sequence of pre-MRI, all DCs were larger than post-CT, and the largest DC was observed by sdyn-eTHRIVE sequence fusion to post-CT. The overlap for PTV was significantly improved in the pre-MRI-based compared with the CT-based. Conclusions TB volumes based on pre-MRI were smaller than post-CT with CVS increased. Pre-MRI provided a more precise definition of the TB with observers performed a smaller inter-observer variability than CT. Pre-MRI, especially in sdyn-eTHRIVE sequence, should help in reducing treatment volumes with the improved accuracy of TB delineation of adjuvant RT of breast cancer.
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Uhlig S, Wuhrer A, Berlit S, Tuschy B, Sütterlin M, Bieback K. Intraoperative radiotherapy for breast cancer treatment efficiently targets the tumor bed preventing breast adipose stromal cell outgrowth. Strahlenther Onkol 2020; 196:398-404. [PMID: 32030446 PMCID: PMC7089893 DOI: 10.1007/s00066-020-01586-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 01/16/2020] [Indexed: 01/17/2023]
Abstract
OBJECTIVES Mesenchymal stromal cells (MSC) in bone marrow have been shown to be radioresistant, which is related to pronounced DNA repair mechanisms. Intraoperative radiotherapy (IORT) during breast-conserving surgery for early breast cancer is an innovative technique applying low energy x‑ray to the tumor bed immediately after removal of the tumor. IORT is considered to reduce the risk of local tumor recurrence by directly targeting cells of the tumor bed and altering the local microenvironment. Aim of this study was to investigate whether IORT affects the outgrowth potential of breast adipose tissue-derived MSC (bASC) as part of the tumor bed. MATERIALS AND METHODS After surgical tumor resection, biopsies of the tumor bed were taken before (pre IORT) and after IORT (post IORT) and processed applying well-established protocols for ASC isolation and characterization. RESULTS In all, 95% of pre IORT tumor bed samples yielded persistently outgrowing bASC with typical ASC characteristics: fibroblastoid morphology, proliferation, adipogenic and osteogenic differentiation and ASC surface marker expression. However, none of the post IORT samples yielded persistent outgrowth of bASC. CONCLUSIONS After breast-conserving surgery, approximately 90% of local recurrences emerge in close proximity to the initial tumor bed, potentially reflecting a significant contribution of the tumor bed to relapse. Our data show that IORT, besides the proven effect on breast cancer cells, efficiently modifies the tumor environment by having an impact on tumor bed bASC. This effect on tumor bed stromal cells might contribute to reduce the risk of tumor relapse and metastases.
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Affiliation(s)
- Stefanie Uhlig
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, German Red Cross Blood Donor Services, Heidelberg University, Friedrich-Ebert Str. 107, 68167, Mannheim, Germany
- FlowCore Mannheim, Medical Faculty Mannheim, Heidelberg University, Ludolf-Krehl Str. 13-17, 68167, Mannheim, Germany
| | - Anne Wuhrer
- Department of Obstetrics and Gynecology, University Medical Center Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Sebastian Berlit
- Department of Obstetrics and Gynecology, University Medical Center Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Benjamin Tuschy
- Department of Obstetrics and Gynecology, University Medical Center Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Marc Sütterlin
- Department of Obstetrics and Gynecology, University Medical Center Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Karen Bieback
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, German Red Cross Blood Donor Services, Heidelberg University, Friedrich-Ebert Str. 107, 68167, Mannheim, Germany.
- FlowCore Mannheim, Medical Faculty Mannheim, Heidelberg University, Ludolf-Krehl Str. 13-17, 68167, Mannheim, Germany.
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Bachmann N, Leiser D, Ermis E, Vulcu S, Schucht P, Raabe A, Aebersold DM, Herrmann E. Impact of regular magnetic resonance imaging follow-up after stereotactic radiotherapy to the surgical cavity in patients with one to three brain metastases. Radiat Oncol 2019; 14:45. [PMID: 30871597 PMCID: PMC6417038 DOI: 10.1186/s13014-019-1252-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 03/05/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Administering stereotactic radiotherapy to the surgical cavity and thus omitting postoperative whole brain radiotherapy (WBRT) is a favored strategy in limited metastatic brain disease. Little is known about the impact of regular magnetic resonance imaging follow-up (MRI FU) in such patient cohorts. The aim of this study is to examine the impact of regular MRI FU and to report the oncological outcomes of patients with one to three brain metastases (BMs) treated with stereotactic radiosurgery (SRS) or hypo-fractionated stereotactic radiotherapy (HFSRT) to the surgical cavity. METHODS We retrospectively analyzed patients who received SRS or HFSRT to the surgical cavity after resection of one to two BMs. Additional, non-resected BMs were managed with SRS alone. Survival was estimated by the Kaplan-Meier method. Prognostic factors were examined with the log-rank test and Cox proportional hazards model. Regular MRI FU was defined as performing a brain MRI 3 months after radiotherapy (RT) and/or performing ≥1 brain MRI per 180 days. Primary endpoint was local control (LC). Secondary endpoints were distant brain control (DBC), overall survival (OS) and the correlation between regular MRI FU and overall survival (OS), symptom-free survival (SFS), deferment of WBRT and WBRT-free survival (WFS). RESULTS Overall, 75 patients were enrolled. One, 2 and 3 BMs were seen in 63 (84%), 11 (15%) and 1 (1%) patients, respectively. Forty (53%) patients underwent MRI FU 3 months after RT and 38 (51%) patients received ≥1 brain MRI per 180 days. Median OS was 19.4 months (95% CI: 13.2-25.6 months). Actuarial LC, DBC and OS at 1 year were 72% (95% CI: 60-83%), 60% (95% CI: 48-72%) and 66% (95% CI: 53-76%), respectively. A planning target volume > 15 cm3 (p = 0.01), Graded Prognostic Assessment (GPA) score (p = 0.001) and residual tumor after surgery (p = 0.008) were prognostic for decreased OS in multivariate analysis. No significant correlation between MRI FU at 3 months and OS (p = 0.462), SFS (p = 0.536), WFS (p = 0.407) or deferment of WBRT (p = 0.955) was seen. Likewise, performing ≥1 MRI per 180 days had no significant impact on OS (p = 0.954), SFS (p = 0.196), WFS (p = 0.308) or deferment of WBRT (p = 0.268). CONCLUSION Our results regarding oncological outcomes consist with the current data from the literature. Surprisingly, regular MRI FU did not result in increased OS, SFS, WFS or deferment of WBRT in our cohort consisting mainly of patients with a single and resected BM. Therefore, the impact of regular MRI FU needs prospective evaluation. TRIAL REGISTRATION Project ID: 2017-00033, retrospectively registered.
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Affiliation(s)
- N Bachmann
- Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse 18, CH-3010, Bern, Switzerland
| | - D Leiser
- Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse 18, CH-3010, Bern, Switzerland
| | - E Ermis
- Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse 18, CH-3010, Bern, Switzerland
| | - S Vulcu
- Department of Neurosurgery, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - P Schucht
- Department of Neurosurgery, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - A Raabe
- Department of Neurosurgery, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland
| | - D M Aebersold
- Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse 18, CH-3010, Bern, Switzerland
| | - E Herrmann
- Department of Radiation Oncology, Inselspital, Bern University Hospital and University of Bern, Freiburgstrasse 18, CH-3010, Bern, Switzerland.
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Kaiser J, Reitsamer R, Kopp P, Gaisberger C, Kopp M, Fischer T, Zehentmayr F, Sedlmayer F, Fastner G. Intraoperative Electron Radiotherapy (IOERT) in the Treatment of Primary Breast Cancer. Breast Care (Basel) 2018; 13:162-167. [PMID: 30069175 DOI: 10.1159/000489637] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
IOERT (intraoperative electron radiotherapy) in breast cancer is used either as a boost (10-12 Gy) followed by whole breast irradiation (WBI) or as full-dose partial breast irradiation (PBI, 20-24 Gy) during breast-conserving surgery. IOERT has the longest evidence of all IORT techniques. When administered as a boost, excellent low local recurrence rates were observed in long-term follow-up >5 years. Even in high-risk groups like triple-negative or locally advanced breast cancers, IOERT contributes to long-term local control rates of more than 90%. For selected low-risk groups, IOERT as PBI with 21 Gy seems to be a viable treatment alternative to standard WBI. IOERT has been shown to be advantageous for several reasons: Geographic misses are avoided due to direct visualization of the tumor bed; thus, a high single dose is delivered with utmost precision to small volumes, completely sparing the skin and ensuring good long-term cosmetic outcome. Furthermore, high single doses seem to induce biological mechanisms with verifiable antitumor capability in in-vitro cell-line studies. In addition, IOERT markedly shortens the overall treatment time both in combination with (now mostly hypofractionated) WBI or as a PBI in selected low-risk constellations.
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Affiliation(s)
- Julia Kaiser
- Department of Radiotherapy and Radio-Oncology, Paracelsus Medical University, University Hospital Salzburg, Landeskrankenhaus, Salzburg, Austria
| | - Roland Reitsamer
- Department of Gynecology, Paracelsus Medical University, University Hospital Salzburg, Landeskrankenhaus, Salzburg, Austria
| | - Peter Kopp
- Department of Radiotherapy and Radio-Oncology, Paracelsus Medical University, University Hospital Salzburg, Landeskrankenhaus, Salzburg, Austria
| | - Christoph Gaisberger
- Department of Radiotherapy and Radio-Oncology, Paracelsus Medical University, University Hospital Salzburg, Landeskrankenhaus, Salzburg, Austria
| | - Michael Kopp
- Department of Radiotherapy and Radio-Oncology, Paracelsus Medical University, University Hospital Salzburg, Landeskrankenhaus, Salzburg, Austria
| | - Thorsten Fischer
- Department of Gynecology, Paracelsus Medical University, University Hospital Salzburg, Landeskrankenhaus, Salzburg, Austria
| | - Franz Zehentmayr
- Department of Radiotherapy and Radio-Oncology, Paracelsus Medical University, University Hospital Salzburg, Landeskrankenhaus, Salzburg, Austria
| | - Felix Sedlmayer
- Department of Radiotherapy and Radio-Oncology, Paracelsus Medical University, University Hospital Salzburg, Landeskrankenhaus, Salzburg, Austria
| | - Gerd Fastner
- Department of Radiotherapy and Radio-Oncology, Paracelsus Medical University, University Hospital Salzburg, Landeskrankenhaus, Salzburg, Austria
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11
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Kepka L, Tyc-Szczepaniak D, Osowiecka K, Sprawka A, Trąbska-Kluch B, Czeremszynska B. Quality of life after whole brain radiotherapy compared with radiosurgery of the tumor bed: results from a randomized trial. Clin Transl Oncol 2017; 20:150-159. [PMID: 28616720 DOI: 10.1007/s12094-017-1703-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 06/05/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND A recent randomized trial (NCT01535209) demonstrated no difference in neurocognitive function between stereotactic radiotherapy of the tumor bed (SRT-TB) and whole brain radiotherapy (WBRT) in patients with resected single brain metastasis. Patients treated with SRT-TB had lower overall survival compared with the WBRT arm. Here, we compared the health-related quality of life (HRQOL) in patients who received WBRT vs. SRT-TB. METHODS A self-reported questionnaire was used to assess HRQOL (EORTC QLQ-C30 with the QLQ-BN20 module) before RT, 2 months after RT, and every 3 months thereafter. HRQOL results are presented as mean scores and compared between groups. RESULTS Of 59 randomized patients, 37 (64%) were eligible for HRQOL analysis, 15 received SRT-TB, and 22 had WBRT. There were no differences between groups in global health status and main function scales/symptoms (except for drowsiness and appetite loss, which were worse with WBRT 2 months after RT). Global health status decreased 2 and 5 months after RT, but significantly only for SRT-TB (p = 0.025). Physical function decreased significantly 5 months after SRT-TB (p = 0.008). Future uncertainty worsened after RT, but significantly only for SRT-TB after 2 months (p = 0.036). Patients treated with WBRT had significant worsening of appetite, hair loss, and drowsiness after treatment. CONCLUSIONS Despite higher symptom burden after WBRT attributed to the side effects of RT (such as appetite loss, drowsiness, and hair loss), global health status, physical functioning, and future uncertainty favored WBRT compared with SRT-TB. This may be related to the compromised brain tumor control with omission of WBRT.
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Affiliation(s)
- L Kepka
- Military Institute of Medicine, Ul. Szaserów 128, 04-141, Warsaw, Poland.
| | - D Tyc-Szczepaniak
- Maria Sklodowska-Curie Memorial Oncology Center and Institute of Oncology, Warsaw, Poland
| | - K Osowiecka
- Independent Public Health Care Facility of the Ministry of the Interior and Warmian & Mazurian Oncology Centre, Olsztyn, Poland
| | - A Sprawka
- Centre of Oncological Diagnostics and Therapy, Tomaszów Mazowiecki, Poland
| | - B Trąbska-Kluch
- Department of Radiotherapy, Medical University of Lodz, Lodz, Poland
| | - B Czeremszynska
- Military Institute of Medicine, Ul. Szaserów 128, 04-141, Warsaw, Poland
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12
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Sedlmayer F, Reitsamer R, Wenz F, Sperk E, Fussl C, Kaiser J, Ziegler I, Zehentmayr F, Deutschmann H, Kopp P, Fastner G. Intraoperative radiotherapy (IORT) as boost in breast cancer. Radiat Oncol 2017; 12:23. [PMID: 28103903 PMCID: PMC5244574 DOI: 10.1186/s13014-016-0749-9] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 12/21/2016] [Indexed: 01/15/2023] Open
Abstract
The term IORT (intraoperative radiotherapy) is currently used for various techniques that show huge differences in dose delivery and coverage of the tissue at risk. The largest evidence for boost IORT preceding whole breast irradiation (WBI) originates from intraoperative electron treatments (IOERT) with single doses around 10 Gy. At median follow-up periods at 6 years, outstandingly low local recurrence rates of less than 1% are observed. Higher local relapse rates were described for G3 tumors and triple negative breast cancers as well as for IORT following primary systemic treatment for locally advanced tumors. Even there, long term (>5y) local tumor control rates mostly beyond 95% were maintained. Compared to other boost methods, an intraoperative treatment has evident advantages in terms of precision (by avoiding a “spatial and/or temporal miss”), cosmetic outcome and patient comfort. Direct visualisation of a tumor bed during surgery guarantees for an accurate dose delivery, which has additionally gained importance in times of primary reconstruction techniques after lumpectomy, since IORT is performed before breast tissue including parts of the tumor bed is mobilized for plastic purposes. As a consequence of direct tissue exposure without distension by hematoma/seroma, IORT allows for small treatment volumes and complete skin sparing, both having a positive effect on late tissue tolerance and, hence, cosmetic appearance. Boost IORT marginally prolongs the surgical procedure, while significantly shortening postoperative radiotherapy. Its combination with external beam radiotherapy to the whole breast (WBI) is currently tested in two multicentric prospective trials: as kV-IORT in the multicentric TARGIT-B (oost) study, and as IOERT in the HIOB trial (3 weeks hypofractionated WBI preceded by IORT electron boost).
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Affiliation(s)
- Felix Sedlmayer
- Department of Radiotherapy and Radio-Oncology, LKH Salzburg, Paracelsus Medical University Clinics, Muellner Hauptstrasse 48, 5020, Salzburg, Austria. .,Institute of Research and Development of Advanced Radiation Technologies (radART), Paracelsus Medical University, 5020, Salzburg, Austria.
| | - Roland Reitsamer
- Department of Special Gynecology and Breast Center, LKH Salzburg, Paracelsus Medical University Clinics, 5020, Salzburg, Austria
| | - Frederik Wenz
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Elena Sperk
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
| | - Christoph Fussl
- Department of Radiotherapy and Radio-Oncology, LKH Salzburg, Paracelsus Medical University Clinics, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Julia Kaiser
- Department of Radiotherapy and Radio-Oncology, LKH Salzburg, Paracelsus Medical University Clinics, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Ingrid Ziegler
- Department of Radiotherapy and Radio-Oncology, LKH Salzburg, Paracelsus Medical University Clinics, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Franz Zehentmayr
- Department of Radiotherapy and Radio-Oncology, LKH Salzburg, Paracelsus Medical University Clinics, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.,Institute of Research and Development of Advanced Radiation Technologies (radART), Paracelsus Medical University, 5020, Salzburg, Austria
| | - Heinz Deutschmann
- Department of Radiotherapy and Radio-Oncology, LKH Salzburg, Paracelsus Medical University Clinics, Muellner Hauptstrasse 48, 5020, Salzburg, Austria.,Institute of Research and Development of Advanced Radiation Technologies (radART), Paracelsus Medical University, 5020, Salzburg, Austria
| | - Peter Kopp
- Department of Radiotherapy and Radio-Oncology, LKH Salzburg, Paracelsus Medical University Clinics, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
| | - Gerd Fastner
- Department of Radiotherapy and Radio-Oncology, LKH Salzburg, Paracelsus Medical University Clinics, Muellner Hauptstrasse 48, 5020, Salzburg, Austria
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Kępka L, Tyc-Szczepaniak D, Bujko K, Olszyna-Serementa M, Michalski W, Sprawka A, Trąbska-Kluch B, Komosińska K, Wasilewska-Teśluk E, Czeremszyńska B. Stereotactic radiotherapy of the tumor bed compared to whole brain radiotherapy after surgery of single brain metastasis: Results from a randomized trial. Radiother Oncol 2016; 121:217-24. [PMID: 27793446 DOI: 10.1016/j.radonc.2016.10.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/27/2016] [Accepted: 10/03/2016] [Indexed: 01/07/2023]
Abstract
PURPOSE To evaluate if neurological/cognitive function outcomes in patients with resected single brain metastasis (BM) after stereotactic radiotherapy of the tumor bed (SRT-TB) are not inferior compared to those achieved with whole-brain radiotherapy (WBRT). METHODS Patients with total/subtotal resection of single BM were randomly assigned either to SRT-TB (n=29) or WBRT (n=30). SRT-TB arm consisted of 15Gy/1 fraction, or 5×5Gy. WBRT consisted of 30Gy/10 fractions. Neurological/cognitive failure was defined as a decrease of neurological score by one point or more, or a worsening of the MiniMental test by at least 3 points, or neurological death. Cumulative incidence of neurological/cognitive failure (CINCF), neurological death (CIND), and overall survival (OS) were compared. RESULTS Median follow-up was 29months (range: 8-45) for 15 patients still alive. The difference in the probability of CINCF at 6months (primary endpoint) was -8% in favor of WBRT (95% confidence interval: +17% -35%; non-inferiority margin: -20%). In the intention-to-treat analysis, two-year CIND rates were 66% vs. 31%, for SRT-TB and WBRT arm, respectively, p=.015. The corresponding figures for OS were 10% vs. 37%, p=.046. CONCLUSIONS Non-inferiority of SRT-TB was not demonstrated in our underpowered study. More data from randomized studies are needed for confirmation of the value of this method.
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