肿瘤放射治疗是局部恶性肿瘤综合治疗的重要组成部分，它对肿瘤局部控制或手术前缩小瘤灶发挥着重要的作用。但临床上肿瘤外放射治疗后不会进行肿瘤病理检测，无法获得病理与影像的对照资料。因此，利用兔VX2肿瘤放射治疗模型来评价肿瘤放射治疗早期DWI和1 H－MRS的表现，可为肿瘤放射治疗前后病理和影像学的变化提供动物实验模型依据。本文对VX2肿瘤放射治疗后功能磁共振的影像学评估现状和前景进行综述。“,”External radiotherapy is one of the important method of the comprehensive treatment on malignant tumors .It plays a great important role in local tumor control or reducing the tumor size before surgery .Clinically, it is not a conventional examina-tion to get tumor specimen for pathological examination after radiotherapy .So it is impossible to get image-pathology comparisons . The method using DWI and 1 H-MRS to evaluate the early radiotherapeutic effects on VX 2 tumor model may establish the evidence on experimental animal model for image-pathology comparisons between before and after tumor radiotherapy .The recent radiologi-cal evaluation methods and prospects of functional magnetic resonance imaging related to VX 2 tumor after radiotherapy were re-viewed in this article .