摘要
目的:探讨Varian金点定位法与Topslane数字床定位法的精度误差。方法:对同一患者,分别采用VarianEclipse金点定位法和Topslane头体集成定位床法定位,在模拟定位机下分别测量两种定位方式下得出的肿瘤中心坐标的偏差。结果:两种定位方法下,长度误差:1.7±0.3mm;宽度误差:0.5±0.4mm;高度误差:1.2±0.4mm。结论:结合两种定位方式的优点,将Topslane定位床应用到VarianEclipse计划系统上以改进定位方式,提高放射治疗疗效。
Objective To investigate precision error between Varian auri-poinrlocalization system and Tosplane digital-bed localization system. Methods Varian Eclipse localization method and Topslane localization method were used separately to locate one target area for one same patient. Then deviations on the tumor center coordinate were measured under the simulation localization machine, Results Under two localization methods, the length error： 1.7mm ±0.3mm; the width error： 0.5mm±0.4mm; the altitude error： 1.2mm±0.4mm. Conclusion The curative effect of radiotherapy would be improved by applying the Topslane localization bed to the Varian Eclipse plan system.
出处
《医疗卫生装备》
CAS
2009年第1期78-79,共2页
Chinese Medical Equipment Journal
关键词
金点法
头体数字床法
精度误差
Varian localization method
Topslane localization method
precision error
