西门子多叶光栅人工校准方法研究与实验

摘要

Objective To guarantee the Multi-Leaf Collimator (MLC)'s moving precision in radiorherapy.Methods We analysed the structure properties of MLC in Siemens Primus Oncor linear accelerator, and use the resent instruments calibrate MLC in manual. Results TImely calibrating of MLC reduced the probability of accelerator's interlocks and ensuredthe patient's treatment. Conclusion A method of manual calibration of 82-leaf MLC is summarized. This method is feasible for it needn't special tools and is easy to operate.[Chinese Medical Equipment Journal,2011.32(8) :113-114,125]%目的:确保多叶光栅(MLC)在放射治疗中的定位精度.方法:通过详细分析西门子Primus和Oncor加速器内置82片多叶光栅的结构组成和特点,利用现有配备的工具进行手工校准MLC.结果:定期校准MLC,减少了加速器出现联锁的机率,保证了患者治疗的顺利执行.结论:总结了一种通过手动方式校准多叶光栅的方法.该方法不需专用工具,易于操作,具有一定的可行性.