射波刀射线数据采集  

Data Collection of CyberKnife Ray

作　　者：胡立宏[1] 施化 王顺[1] 张凤祥[1] 

机构地区：[1]解放军150医院射波刀中心,河南洛阳471031

出　　处：《医疗卫生装备》2012年第1期117-119,共3页Chinese Medical Equipment Journal

摘　　要：目的:介绍组织模体比、中心离轴比、射野输出因子的数据采集。方法:把半导体探测器放入IBA三维水箱设定的深度,对6 MV的射线进行数据收集,把12种不同准直器测量的数据经过软件处理输入到主工作站。结果:经过比对测量的射波刀临床数据,除了在0 mm处TPR数据有较大的误差外,大部分误差都在2%以内。结论:测量的数据与射波刀以往的经验数据线性拟合度很好,误差在1%以内,可以应用于临床。Objective To obtain the beam data of tissue-phantom ratios （TPR）, off-center ratios（OCR） and output factors（OUF）. Methods The TPR,OCR and OUF measurements of 6MV photon beams were carried out using the semiconductor detector positioned at the setting depth in the IBA computer-controlled 3D water phantom.The measured data for 12 different collimators was processed by the software and input into the main workstation. Results The measured clinic data errors agreed to within 2% except the TPR data at 0mm due to the types, material and sizes of semiconductor probes from different manufacturers and the different definitions on the water surface. Conclusion The linear fitting degree between the measured data and past experience data is very good,and the error is within 1%. So the mesured data is available to clinic treatment.

关 键 词：射波刀 组织模体比 中心离轴比 射野输出因子 

分 类 号：R197.39[医药卫生—卫生事业管理]