放疗设备等中心精度分析与对策

Isocenter Rotation Resolution Analysis and Technique of Radiotherapy Equipment

等中心回转精度是医用电子直线加速器、钴60远距离治疗机、放疗模拟定位机、立体放射外科系统等医疗设备重要的综合技术性能指标之一,其精度高低将直接影响放射治疗的治愈率和有效率。本文通过对放疗模拟定位机的等中心回转误差分析,提出了一些对策措施。实践证明,这些方法是行之有效的。

Isocenter rotation resolution, which affects the curative ratio and effective of radiotherapy, is an important performance of medical equipments such as medical electron linear accelerator, Cobalt-60 rotational teletherapy unit, radiotherapy simulator,stereotactic radiosurgery system and so on.This article-analyzes isocenter rotation resolution of radiotherapy simulator and puts forward technical methods that have been proved in practice.