目的 探讨动态增强MRI(DCEMRI)联合弥散加权成像(DWI)对子宫内膜 癌诊断的准确性。方法 选择2014年1月至 2016年4月在本院治疗的子宫内膜癌确诊 病例82例，采用DCE-MRI联合DWI对子宫内 膜癌的肌层浸润情况及术前分期诊断,分 析其灵敏度与特异度，并判断其术前分期 与金标准的一致性。结果 DCE-MRI联合 DWI获得正确诊断肌层浸润深度70例，准 确率为95.89%；对浅肌层和深肌层浸润 的灵敏度、特异度、阳性预测值和阴性 预测值均高于90%。对75例病例的术前分 期获得正确的诊断，准确率为91.46%， 与金标准的一致性良好，Kappa指数为 0.88(P<0.05)。结论 DCE-MRI联合DWI成 像对子宫内膜癌的术前分期与肌层浸润深 度的诊断具有较高的准确度，能改善病人 的诊断和预后。

Objective To probe the diagnosing accuracy of DCE-MRI combined with DWI on endometrial carcinoma. Methods A total of 82 patients confirmed with endometrial carcinoma in this hospital from Jan 2014 to Apr 2016 were chosen. DCEMRI combined with DWI was adopted to diagnose the myometrial invasion and pathological stage of endometrial carcinoma. The sensitivity and specificity of diagnose were analyzed, and the consistency test between DCE-MRI combined with DWI and gold standard on pathological stage were conducted. Results The diagnosing accuracy of DCE-MRI combined with DWI on the myometrial invasion was 95.89% (70 cases), and the sensitivity, specificity, positive predictive value, and negative predictive value in shallow and deep myometrial invasion were all higher than 90%. The diagnosing accuracy on pathological stage was 91.46% (75 cases). There was strong consistency on diagnosing of pathological stage between DCE-MRI united to DWI and gold standard, with Kappa value being 0.88(P<0.05). Conclusion DCE-MRI combined with DWI has high diagnosing accuracy on myometrial invasion and preoperative pathological stage of endometrial carcinoma, and is expected to improve the diagnosing effect and prognosis of patients with endometrial carcinoma.