不同匹配方式对IGRT摆位精度的影响
赵辉;赵文晖;师芳;马军
【期刊名称】《现代肿瘤医学》 【年(卷),期】2013(021)007
【摘要】Objective:To explore the effects of different matching modes on target positioning precision in image guided radiation therapy (IGRT).Methods:Ten patients with head and facial tumors and ten patients with esophageal tumor were positioned twenty times for IGRT,respectively.Each time,the twenty patients were positioned under the same conditions of the image collecting conditions and method,the image matching area,and the image construction mode.After the positioning,images were collected by CBCT and matched with the reference images using the bone or greyscale mode via the XVI system.Based on the obtained data,the effects of the two matching modes on the target positioning precision were studied.Results:X,Y,Z three directions in two groups of error difference is bigger,in the butt face and esophageal cancer patients treated using IGRT,image matching using bone model precision.Conclusion:In IGRT for head and facial cancers and esophageal cancer,matching using the bone mode resulted in higher target positioning precision than matching using the greyscale mode.%目的:探讨放射治疗IGRT应用中不同匹配方式对治疗摆位精度的影响.方法:对10名头面部肿瘤患者和10名食管肿瘤患者分别采用对同一患者,在图
不同匹配方式对IGRT摆位精度的影响
