磁共振扩散加权成像在判断子宫内膜癌肌层浸润中的应用

目的：探讨MR／扩散加权成像在判断子宫内膜癌肌层浸润中的应用价值。方法：回顾性分析40例经手术病理证实的子宫内膜癌MR扩散加权成像表现，判断其肌层浸润程度，并与术后病理结果进行对照分析。结果：MRI扩散加权成像示子宫内膜癌局限于内膜5例，侵及浅肌层21例，侵及深肌层14例。以手术病理为准，MRI扩散加权成像判断肿瘤局限于内膜的敏感性、特异性、准确性、阳性预测值、阴性预测值分别为60．0％、94．3％、90．0％、60．0％、94．3％；浅肌层浸润分别为85．0％、80．0％、82．5％、81．0％、84．2％；深肌层浸润分别为86．7％、96．0％、92．5％、92．9％、92．3％。结论：MRI扩散加权成像对判断子宫内膜癌肌层浸润有较高价值，有助于选择合适的治疗方案。

Application of diffusion - weighted MRI in judging the myometrial invasion of endometrial carcinoma

Objective： To study the application value of diffusiong - weighted MRI in judging the myometrial invasion of endometria carcinoma. Methods： The diffusiong - weighted MRI features were retrospectively analyzed in 40 cases of endometrial carcinoma proved by operation and pathology. The diffusiong - weighted MRI diagnosis of myometrial invasion were correlated with pathologic findings. Results： Based on diffusiong - weighted MRI image, the tumor was confined to the endometriun in 5 cases, causing superficial myometrial invasion 21 cases;deep - myometrial invasion 14 cases. Compared with postoperative pathology results,the incidence of sensitivity, specificity, accuracy, positive predictive value and negative predictive value of diffusiong - weighted MRI assessment for tumor confined to endometriun were 60.0% ,94.3% ,90.0% ,60.0% ,94. 3% ; to superfical myometrial invasion were ： 85.0%, 80.0% ,82.5% ,81.0% ,84.2% ;to deep - myometrial invasion were： 86.7% ,96.0% ,92.5% ,92.9% ,92.3%. Conclusion： Diffusiong - weighted MRI have considerable value in judging the myometrial invasion of endometrial carcinoma ,which is helpful for choosing suitable treatment plan.