DWI-T2WI融合图像判断Ⅰ期子宫内膜癌肌层浸润深度  

Diffusion-weighted and T2-weighted fused images in diagnosis of myometrial invasion of endometrial cancer

作　　者：冯杰[1] 龙淼淼[1] 倪红艳[1] 季倩[1] 沈文[1] 祁吉[1] 

机构地区：[1]天津市第一中心医院放射科,天津300192

出　　处：《中国医学影像技术》2012年第6期1187-1190,共4页Chinese Journal of Medical Imaging Technology

摘　　要：目的探讨DWI与T2WI融合图像在判定Ⅰ期子宫内膜癌肌层浸润深度中的价值。方法对28例Ⅰ期子宫内膜癌患者行常规MR及DWI检查。采用T2WI和T2WI-DWI融合图像分别测量肌层浸润深度及肌层厚度,计算二者比值,并将该比值与术后病理标本测量的肌层浸润深度进行比较。应用ROC曲线评价两种方法对肿瘤是否浸润肌层及是否浸润深肌层的诊断效能。结果术后病理诊断无肌层浸润3例,浅肌层浸润13例,深肌层浸润12例。对于评估肿瘤是否浸润肌层及深肌层,T2WI-DWI融合图像诊断效能优于T2WI,差异有统计学意义(P<0.05)。结论 MR对术前评估子宫内膜癌肌层浸润深度有一定价值;T2WI-DWI融合图像较常规T2WI判断更准确。Objective To discuss the value of T2WI-DWI fused image in evaluating myometrial invasion of endometrial carcinoma. Methods A total of 28 patients with endometrial carcinoma were enrolled. All patients underwent routine MR and DW-MRI examination. Myometrial invasion was analyzed both on T2WI and T2WI-DWI fused images, then ratio of depth of myometrial invasion and thickness of myometrium were calculated and compared with postoperational pathology. The diagnostic reliability of T2WI and T2WI-DWI fused images was compared, and receiver operating characteristic curve was drawn to determine the diagnostic efficiency. Results Postoperational pathology showed no myometria[ invasion in 3 patients, myometrial invasion of shallow in 13 and deep myometrial invasion in 12 patients. T2WI-DWI fused images showed better performance than T2WI both in the diagnosis of myometrial and deep myometrial invasion （P〈0. 05）. Conclusion Preoperational MR is helpful for the diagnosis of myometrial invasion in endometrial carcinoma, and T2WI-DWI fused images perform better than TZWI.

关 键 词：子宫内膜肿瘤 子宫肌层 肿瘤浸润 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R737.33[医药卫生—诊断学]