Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation
-
Zhongguo Yi Liao Qi Xie Za Zhi · May 2016
[RapidArc Delivery Performance Using EDR2 Film and EPID Measurement].
This study describes the development and implementation of EDR2 film and electronic portal imaging device (EPID) during RapidArc QA. The tests were designed to evaluate RapidArc performance using EDR2 film and EPID tools. The accuracy of MLC position during gantry rotation, the ability to vary and control the dose-rate and gantry speed, the synchronization of variable MLC speed and dose-rate were examined. ⋯ The analysis of dose value was less than 2%. This study demonstrated that EDR2 film and EPID system can be used as reliable and efficient quality assurance tools for RapidArc delivery performance. Of course, the use of VMAT QA with EPID increases the efficiency of routine QA.