在医院放疗科附近人们总能看到一些体表划着红框框的患者,很多人用好奇的眼光追看着他们。有的患者为了美观擅自抹去了这些标记,他们殊不知红框框有多么重要。为了有效杀灭癌细胞,放射治疗前必须确定治疗部位以及治疗范围。这些红框框则在呈不规则立体几何形状的人体中建立了有效的坐标系统和空间范围。而它们的建立并 In the vicinity of the radiotherapy department of the hospital, people can always see some patients with red framed body surface, many people chasing after them with curiosity. Some patients have erased these marks for aesthetic reasons. They do not know how important the red frame is. In order to effectively kill cancer cells, the treatment site and treatment scope must be determined before radiation therapy. These red boxes create an effective coordinate system and spatial extent in a human body with irregular stereoscopic geometry. And their establishment and