二维矩阵用于加速器调强适形放射治疗质量控制检测的比较研究

Research on the use of two-dimensional array for IMRT quality control of medical accelerators

目的:研究二维矩阵应用于调强适形放射治疗(IMRT)质量控制检测的可行性。方法:选取不同医院用于IMRT治疗的6台加速器,使用市面上常见的3种品牌二维矩阵对其重要的质量控制项目进行检测分析。结果:6台加速器的不同质量控制项目检测符合相应标准,不同矩阵间未出现明显差异。结论:使用二维矩阵进行IMRT质量控制检测简单可靠,可以作为IMRT加速器质量控制检测的有效方法。

Objective：To investigate the feasibility of two-dimensional array （2D-array） for IMRT quality control. Methods：Three kinds of 2D-array commercially available were used to measure several key QC procedures for six medical accelerators from different hospitals. Results： The measurement results can meet the standard requirement, no significant differences are found among the arrays. Conclusion：The simple and reliable method based on 2D-array is helpful with IMRT QC of medical accelerator.