2个治疗计划系统调强放疗剂量验证比较

摘要

目的:通过比较Xio和Oncentra MasterPlan 2个治疗计划系统调强放疗剂量验证的结果,评价它们应用于临床的准确性.方法:用IBA二维电离室矩阵MatriXX分别采集Xio和Oncentra MasterPlan系统的鼻咽癌调强照射野数据,并用IBA Omnipro I'mRT1.6软件分析处理.结果:Xio系统62个照射野3 mm 3％通过率均值为95.4％,3 mm 5％为98.4％;Oncentra MasterPlan系统75个照射野3 mm 3％通过率均值为92.8％,3 mm 5％为95.8％.二者差别具有统计学意义.结论:2个治疗计划系统都可以应用于临床调强放疗,Xio系统的准确性要优于Oncentra MasterPlan系统.%Objective To value the clinical accuracy of Xio and Oncentra MasterPlan treatment planning systems for their IMRT dose verification. Methods Both the NPC IMRT beam dose data of Xio and Oncentra MasterPlan systems were collected by IBA MatriXX. Then they were analyzed by IBA OmniPro I'mRT 1.6 software. Results The 3mm 3% average pass rate of 62 beams in Xio system was 95.4% and the 3mm 5% was 98.4%. The 3mm 3% average pass rate of 75 beams in Oncentra MasterPlan system was 92.8% and the 3mm 5% was 95.8% . The difference between Xio and Oncentra MasterPlan systems was statistically significant. Conclusion The two treatment planning systems can be applied to clinical IMRT, moreover, Xio system has a higher accuracy than Oncentra MasterPlan system.