中国医疗设备Issue(9)：120-121,127,3.DOI:10.3969/j.issn.1674-1633.2014.09.045
利用二维电离室矩阵进行调强放疗计划剂量验证的探讨
Discussion on Dose Veriifcation of IMRT Plans with 2D Ionization Chamber Array
时勇 1张芬 1张开贤 1李成建 1张敏1
作者信息
- 1. 滕州市中心人民医院放疗室，山东滕州277500
- 折叠
摘要
Abstract
Objective To explore the application value of 2D ionization chamber array in the dose verification of IMRT plans. Methods IMRT plans of 16 patients who would undergo IMRT in our hospital were designed through treatment planning system and then were migrated to solid water to obtain phantom hybrid plans. Then the dose veriifcation of phantom hybrid plans was conducted with 2D ionization chamber array. The veriifcation results were analyzed according to 3%/3 mm criterion. Results The passing rate scope of absolute dose veriifcation results of all radiation ifelds was 86.4%~100%while that of relative dose veriifcation results of all radiation ifelds was 88.5%~100%. Conclusion As a fast dose measurement system, 2D ionization chamber array plays an important role in the dose veriifcation of IMRT plans.关键词
调强放疗/二维电离室矩阵/剂量验证/Gamma通过率Key words
intensity modulated radiation therapy/2D ionization chamber array/dose verification/Gamma passing rate分类
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时勇,张芬,张开贤,李成建,张敏..利用二维电离室矩阵进行调强放疗计划剂量验证的探讨[J].中国医疗设备,2014,(9):120-121,127,3.
