解放军医学杂志2013，Vol.38Issue(3)：222-224,3.
放射治疗分次间与分次中眼晶状体的位移研究
Research on inter-fraction and intra-fraction motion of crystalline lens in radiotherapy
杨书明 1赵水喜 1穆晓峰 1赵卫东 1宁健1
作者信息
摘要
Abstract
Objective To investigate the range of inter-fraction and intra-fraction motion of crystalline lens in radiotherapy. Methods The CT and MRI images of 17 patients were registered, and the profile of crystalline lens was delineated to determine the respective center coordinates, thus simulating and analyzing inter-fraction and intra-fraction motion of lens in radiotherapy. Results Both left and right lens moved in different degree during both inter- or intra-fraction phase. The range of lens movement was larger in inter-fraction than in intra-fraction phase in all directions. Conclusion When radiotherapy is given in the free state, considering the distance of lens movement alone in inter- and intra-fraction and without considering the setup error, the lens planning organs at risk should increase 1.5mm outside the lens boundary.关键词
图像配准/放射疗法/放射治疗计划,计算机辅助/晶体Key words
image registration/ radiotherapy/ radiotherapy planning, computer-assisted/ lens, crystalline分类
医药卫生引用本文复制引用
杨书明,赵水喜,穆晓峰,赵卫东,宁健..放射治疗分次间与分次中眼晶状体的位移研究[J].解放军医学杂志,2013,38(3):222-224,3.
