放射外科的质量控制及剂量学数据测量  

Quality control and relative dosimetry in radiosurgery

作　　者：武华坪[1] 杨开军[1] 王克万[1] 漆松涛[1] 

机构地区：[1]广州第一军医大学南方医院神经外科,广州510515

出　　处：《中国微创外科杂志》2002年第4期216-217,共2页Chinese Journal of Minimally Invasive Surgery

摘　　要：目的　介绍调试和使用Brain -ScanX刀治疗系统过程中相关物理参数的测量方法及质量控制的技术要求。　方法 (1)St、TMR、OFR的测量 ,(2 )直线加速器机械稳定性及等中心点的校准 ,(3)人体不均头模检验治疗计划与实际治疗中剂量分布的差异 ,(4)对每一例治疗计划中数据检验及检查。　结果　经过验证 ,相关物理参数的测量值和机械性能均达到X刀治疗的质量控制要求。　结论　X刀作为放射外科的一个主要手段 ,已成为可部分替代神经外科手术的新方法 ,但必须增强X刀治疗的质量保证与控制的意识 ,以保证其安全。Objective To study and summarize the the methods of quality control and relative dosimetry in adjusting and using Brain SCAN X-knife system. Methods Methods used in the present study included:1) measurement of St,TMR,OAR;2)pre-treatment set-up verification of linear accelerator;3)measurement of the difference with dose planning and true dose distribution in experimental treatment with head phantom;4)calculation and examinafion of relative data of every treatment plan. Results Both and the values and the mechanical properties of relative parameters met the demands of quality control of X-knife therapy. Conclusions As a main method of radiosurgery,the X-knife has become a new menthod that may replace the partial neurosurgical opertion.It is necessary that the concept of quality control be enhanced to ensure safe and effective therapy.

关 键 词：质量控制 剂量测量 放射外科 

分 类 号：R815[医药卫生—放射医学]