Investigation of the mechanical performance of Siemens linacs components during arc: gantry, MLC, and electronic portal imaging device
نویسندگان
چکیده
منابع مشابه
Investigation of the mechanical performance of Siemens linacs components during arc: gantry, MLC, and electronic portal imaging device
BACKGROUND In radiotherapy treatments, it is crucial to monitor the performance of linac components including gantry, collimation system, and electronic portal imaging device (EPID) during arc deliveries. In this study, a simple EPID-based measurement method is suggested in conjunction with an algorithm to investigate the stability of these systems at various gantry angles with the aim of evalu...
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15 صفحه اولPerformance Evaluation of the Siemens Electronic Portal Imaging Device for IMRT Plan Verification
A commercially available amorphous Silicon Electronic Portal imaging device (aSi-EPID) installed onto Siemens Oncor Linear accelerator was evaluated with the objective to be implemented for IMRT quality assurance. EPID properties were investigated; these include reproducibility, dependences between the relative EPID responses and field size, dose rate were studied for both photon beams. To dete...
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Background: To correct patient positioning errors (setup errors) during prostate cancer treatment using EPID and fiducial gold markers, to improve the accuracy of the dose delivery in these patients. Materials and Methods: Fifteen patients with localized prostate carcinoma after implantation of fiducial gold markers in their prostate gland underwent the five-field IMRT planning technique. The p...
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BACKGROUND In modern radiotherapy, it is crucial to monitor the performance of all linac components including gantry, collimation system and electronic portal imaging device (EPID) during arc deliveries. In this study, a simple EPID-based measurement method has been introduced in conjunction with an algorithm to investigate the stability of these systems during arc treatments with the aim of en...
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ژورنال
عنوان ژورنال: Medical Devices: Evidence and Research
سال: 2015
ISSN: 1179-1470
DOI: 10.2147/mder.s89725