Truebeam与Triology加速器光子束匹配分析

发布时间：2018-01-30 13:45

本文关键词： 射束匹配射束分析加速器　出处：《中国医学装备》2016年07期 　论文类型：期刊论文

【摘要】：目的:比较Varian公司Truebeam与Triology医用加速器光子束数据,探讨2台加速器6MV和10 MV光子束射束匹配的可能性。方法:Truebeam和Triology加速器安装验收完成后,利用IBA blue phantom 2三维水箱采集2台机器光子束数据,数据包括40 cm×40 cm射野以下的百分深度剂量、离轴剂量曲线、输出因子;对数据进行射束匹配分析。利用Ecilpse计划系统两种机器模型设计测试例和患者病例调强放射治疗计划,利用IBA公司Matrixx电离室矩阵进行验证。结果:2台机器中,6 MV-X射线对应能量,PDD差异1%,profile差异1%或2 mm;射野输出因子差别1%;测试例2台机器模型剂量误差1%,调强患者计划验证通过率均98%。结论:Truebeam和Triology2台医用加速器6 MV光子束可以进行数据匹配。
[Abstract]:Objective: to compare the photon beam data between Varian Truebeam and Triology medical accelerator. To explore the possibility of two accelerators matching 6 MV and 10 MV photon beam. Methods after the installation and acceptance of the two accelerators: Truebeam and Triology were completed. Two machine photon beam data were collected by using IBA blue phantom 2 three-dimensional water tank. The data included the percent depth dose below 40 cm 脳 40 cm field and the off-axis dose curve. Output factor; The two machine models of Ecilpse planning system were used to design the test cases and the intensity modulated radiotherapy (IMRT) plan of patients. Results\\\. The difference of profile was 1% or 2 mm; The difference of field output factor is 1; The dose error of two machine models was 1%. Conclusion\\\%\%\%\%
【作者单位】：郑州大学第一附属医院放射治疗部;
【基金】：河南省医学科技攻关项目(201403056)“利用未均整射束进行调强放疗的应用研究”
【分类号】：R815
【正文快照】： Truebeam医用加速器是Varian公司新型放射治疗FFF以及15 MV光子束射线。设备,Triology是其C系列中高端图像引导放射治疗Triology加速器机头采用较小的独立均整器设(image guide radiation therapy,IGRT)设备,本研究计,可以产生6 MV(1000 MU/min)和10 MV两档高能对科室内部安装

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