摘要
全身平移扫描治疗装置是一由计算机控制的可升降、床面可纵向移动的特别的床。床面运动的距离可达2.3m。为了使人体不同厚度的躯段在扫描过程中能获得相等的中平面剂量,在软件设计中将全程扫描分为4个躯段。医者可根据病人人体情况分成数段,并任选各段的长度和扫描速度,系统会自动改变其相应速度完成设定的要求。系统还设有安全可靠的联锁系统,确保治疗的安全。经检测,装置在计算机的控制下,运动平稳、匀速,在扫描范围内剂量分布均匀。
Total body pan & scan radiotherapeutic instrument is a special bed whose heave and the vertical slide of its bedboard are controlled by the computer. The maximum vertical travel is about 2.3 meters. To distribute equal middle plane dose in the patient's body during scanning, the doctor divides the body into four segments and gives them different lengths and velocities as required. The instrument can travel as set automatically. The reliable interlock system is involved for the maximum safety. A serial of tests prove that the instrument runs stably and the dose distribution is very uniform.
出处
《医疗卫生装备》
CAS
2005年第3期1-2,共2页
Chinese Medical Equipment Journal
基金
本课题由浙江省自然科学基金项目(M303882)资助。
关键词
全身平移扫描
放射治疗
扫描躯段
total body pan & scan
radiotherapy
scanning body segment
