医用电子直线加速器质量控制指南

随着放疗技术的发展,我国已进入精准放疗时代。医用电子直线加速器作为放疗的主要设备,能否做好质量控制工作,使之可靠运行,是保证放疗精确实施的先决条件。本指南为国内医疗机构制定本单位的医用电子直线加速器质控方法提供指导,范围涵盖机械性能、安全联锁、剂量学性能、图像引导、特殊照射等多方面内容。在制定指南时,以已发布的国内外相关标准为依据,旨在将国内各机构的质控项目统一化。使用医用电子直线加速器进行放疗的医疗机构应配备相应的质控人员,建议每台加速器至少配1名医学物理师。对于日检项目,由技师或医学物理师完成;对于月检及年检项目,由医学物理师完成。参加质控的人员须持证上岗并经过完善培训,测量结果由高年资医学物理师审核并存档。

Quality control guidelines for medical electronic linear accelerators

With the development of radiotherapy technology,China has entered the era of precision radiotherapy. Medical electronic linear accelerators quality control is very important. This guide provides guidance for domestic medical institutions to develop their own quality control methods. The scope covers mechanical performance,safety interlock,dosimetric performance,imaging performance,and other special techniques. The aim of this guide is to unify the quality control protocol from different institutions. Taking into account the different brand models of equipment,the reference values and test methods are not unique. The quality control guidelines are for reference only,and the reference values need to refer to the measurement results during machine acceptance. It is recommended that each accelerator should have at least one medical physicist. For daily QA items,the therapist or medical physicist is in charge of the work;for monthly and annual QA items,medical physicist completes the work. Those who participate in quality control must be certified and trained,and the measurement results should be reviewed and archived by senior medical physicists.