影像引导放射治疗系统

Image guided radiotherapy system

影像引导放射治疗(IGRT)是近年来放射肿瘤学领域最先进的治疗技术。通过新型IGRT系统,将影像获取、治疗计划设计、CT模拟定位及加速器治疗完美地整合到一套放疗系统之中,以精确实施放射治疗。目前IGRT设备主要有传统直线加速器结合影像系统、断层放射治疗机和影像引导的立体定向治疗机。现就该类新技术及其临床应用作一综述。

Image-guided radiotherapy （IGRT） system has been the most advanced treatment technique in radiation oncology in recent years. Through new IGRT, several processes can be perfectly integrated in a set of radiotherapy system for conformal therapy, which include image taking, radiotherapy planning, CT simulation and accelerator treatment. The IGRT equipment comprises traditional linear accelerator combinated with image system, helical tomotherapy and image-guided stereotaxic targeted therapy. This paper reviews new technique and the clinical uses of IGRT.