Korean J Med Phys.
2005 Mar;16(1):39-46.
The Study on the Head and Neck Phantom for Quality Assurance of Intensity Modulated Radiotherapy
- Affiliations
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- 1Research Institute and Hospital, National Cancer Center, Korea. cool_park@ncc.re.kr
Abstract
- For the QA of IMRT treatment of head and neck cancer by using M3 (BrainLAB Inc. Germany), it is not easy to measure delivery dose exactly because the dose attenuation appears by the couch according to the position of table and gantry. In order to solve this problem, we fabricated head and neck phantom which would be implemented on the couch mount of Brain Lab Inc. We investigated dose attenuation by the couch and found the difference of dose distribution by the couch, in the applying this phantom to the clinic. After measurement, we found that point dose attenuation was 35% at maximum and dose difference was 5.4% for a point dose measurement of actual patient quality assurance plan.
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