Summary: | 碩士 === 元培醫事科技大學 === 醫學影像暨放射技術系碩士在職專班 === 104 === The purpose of this study is to verifythe quality assurance and dose evaluation for a intraoperative low-energy photon radiotherapeuic equipment with 50-kV miniature radiation source system. To provide the breast cancer patients have the same healing effect and reduce side effects and reduce the risk of contralateral breast cancer-bearing. In this experiment, we used radiation color film (GAFCHROMIC ® EBT3 Dosimetry Film) to perform the relevant measures. These data allows users to understand the benefits and limitations of the instrument use, on the other hand, to obtain the relevant data before the actual implementation of patient treatment.
At first, our team performed radioactivity testing in three operating roomr with X-ray photography and basic radiation protection.The control zone (<10μSv / h) and outside control areas (<0.5μSv / h) are in compliance with the provisions of the Radiation Protection Safety. Next, the characteristics and the physical parameters were measured on the equipment: Radial Dose Function had 4% deviation, Anisotropy Function axis around 45 rooms had an deviation less than 5%, Gamma Index 4π direction is also more than 90%, benchmark with (2%, 2mm).BrachyVisionTM establish the first optimized treatment planning computer system for IORT in Taiwan.
The of results of this study can help surgeons, radiation oncologists and medical teams.To realize this radiotherapy machine and to achieve accurate and personalized treatment in medical therapy.Finally,we hope the study can improve the medical level of domestic breast cancer patients.
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