中国医疗设备2018，Vol.33Issue(5)：60-62,70,4.DOI:10.3969/j.issn.1674-1633.2018.05.016
利用普通放疗定位CT机个体化确定肺部肿瘤内靶区的方法
Study of Individual Method of Determining Internal Target Volume in Lung Cancer by Using Conventional CT Machine
摘要
Abstract
Objective To explore a method of determining internal target volume (ITV) for middle-inferior lung cancer according to the coordinate system of CT machine. Methods Three groups of CT images including: end of inspiratory, end of expiratory and free breathing were collected from 20 patients fixed with the thermoplastic molds. Then the ITV ranges of X (left-right), Y (head-foot) and Z direction (belly-back) were determined according to the CT images in which the tumor reach the maximum. Results The distance of X+ and X-respectively were (0.68±0.53) mm and (0.71±0.55) mm with P>0.05; the distance of Y+ and Y-respectively were (4.14±4.11) mm and (4.32±4.53) mm with P>0.05; the distance of Z+ and Z-were respectively (1.14±1.11) mm and (1.32±1.27) mm with P>0.05. The data in Y direction were different form that in X and Z direction (P<0.05). Conclusion For radiotherapy of middle-inferior lung tumor, this method might be used as an individual way to determine ITV by using general CT machine.关键词
肺癌/CT层面图像/放射治疗/内靶区Key words
lung cancer/CT layer images/radiotherapy/internal target volume分类
医药卫生引用本文复制引用
张广鹏,杨波,孙小杨,庞皓文,石翔翔,陈仁金,唐涛,吴敬波..利用普通放疗定位CT机个体化确定肺部肿瘤内靶区的方法[J].中国医疗设备,2018,33(5):60-62,70,4.基金项目
四川省医学科研青年创新课题(Q15020). （Q15020）
