| 石俊月,袁玲,石兴源,屈伟强,王茹,徐瑶瑶,周剑良.EDose软件在锥筒计划剂量验证中的应用[J].南华大学学报(自然科学版),2020,34(4):42~47.[SHI Junyue,YUAN Ling,SHI Xingyuan,QU Weiqiang,WANG Ru,XU Yaoyao,ZHOU Jianliang.The Application of EDose Software in Dose Verification of Cone-plan[J].Journal of University of South China(Science and Technology),2020,34(4):42~47.] |
| EDose软件在锥筒计划剂量验证中的应用 |
| The Application of EDose Software in Dose Verification of Cone-plan |
| 投稿时间：2020-03-23 |
| DOI： |
| 中文关键词: 电子射野影像系统 EDose软件 锥筒计划 剂量验证 γ通过率 |
| 英文关键词:EPID EDose software cone-plan dose verification γ pass rate |
| 基金项目:广东省临床教学基地教学改革研究项目(2017JD108) |
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| 中文摘要: |
| 通过使用软件Varian公司的Trilogy加速器自带的EPID配合EDose软件和德国IBA公司的RAROR Chamber以及与其配套的DOSE1剂量仪和RW-3固体水分别对12例锥筒计划进行绝对剂量验证,记录并分析使用EDose软件时在不同标准下绝对剂量γ通过率和使用电离室时的点剂量验证结果。发现采用γ(3%/3 mm)、(3%/2 mm)、(2%/2 mm)标准时,EDose软件验证的绝对剂量γ通过率分别为(99.59%±0.33%)、(96.96%±1.27%)、(95.48%±1.37%),等中心处绝对剂量偏差为0.27%±1.02%;电离室测量的等中心处绝对剂量偏差为－0.03%±1.20%,最大偏差是－1.82%。两种验证方法的验证结果均满足临床治疗的要求且无统计学差异。结果表明基于电子射野影像系统(EPID)的EDose软件可以用于锥筒计划的剂量验证,而且可以提供二维剂量分布,操作更加方便,同时可以节约科室成本。 |
| 英文摘要: |
| The absolute dose verification of 12 cone-plans was performed by using the EPID that comes with the Trilogy Accelerator of the Varian company,the EDose software,the RARORChamber of the German IBA company,and the matching DOSE1 dosimeter and RW-3 solid water respectively,Record and analyze the absolute dose γ pass rate under different standards when using EDose software and the point dose verification results when using RARORChamber.It was found that when using γ (3%/3 mm),(3%/2 mm),(2%/2 mm) standards,the absolute dose γ pass rates verified by EDose software were (99.59%±0.33%),(96.96%±1.27%),(95.48%±1.37%),the absolute dose deviation at the isocenter is 0.27%±1.02%;the absolute dose deviation at the isocenter measured by the ionization chamber is －0.03%±1.20%,and the maximum deviation is －1.82%.The verification results of the two verification methods meet the requirements of clinical treatment without statistical difference.The results show that the EDose software based on EPID can be used for dose verification of cone-plan,and can provide two-dimensional dose distribution,which is more convenient to operate and saves department costs. |
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