关于X刀的质量保证

Quality Assurance of X Knife

目的 :介绍北京医院放疗科X刀小组在X刀质量保证方面的基本方案。材料与方法 :用胶片法验证加速器与X刀准直系统的精确度、计划系统的可靠性以及患者治疗摆位时操作的正确性。结果 :80多例立体定向治疗的测试结果显示摆位误差小于± 1mm。结论 :靶区定位和剂量传换系统的准确性得到验证 。

Purpose: A comprehensive quality assurance program has been established in Beijing hospital to ensure that 'radiosurgery' be carried out precisely and safetely.Materials and Methods: A film checking technique was used to verify the localization accuracy and the setting-up accuracy.Results: The figures taken from 80 cases treated show that the setting-up accuracy of the target positions be within ±1mm .Conclusion: The positional accura cies during target localization and setting-up are guaranteed by using our QA procedures.