目的 比较分析经阴道超声与磁 共振成像(MRI)诊断子宫内膜癌的价值。 方法 选择我院2014年1月-2017年8月经 手术病理证实的子宫内膜癌患者70例，术 前均行阴道超声、MRI检查，观察影像学 表现，并以手术病理结果为标准，比较分 析阴道超声、MRI诊断术前分期的敏感度 及准确度。结果 阴道超声检出I期41例， 表现为内膜增厚，内部回声强或回声不均 匀；检出II期21例，表现出子宫内膜延伸 团块影；检出III期8例，表现为子宫浆膜 层不完整，或附件显示团块影；MRI检出 I期41例，表现为内膜增厚，子宫肌层外 廓完整；检出II期22例，表现为子宫颈浸 润，内部低信号；检出III期7例，子宫 外肌层存在持续中断信号，或子宫附近浸 润。以手术病理为标准，阴道超声诊断子 宫内膜癌分期总准确度87.14%，较MRI的 91.43%差异无统计学意义(P＜0.05)。结 论 经阴道超声与MRI诊断子宫内膜癌术前 分期均有较大的意义。

Objective To comparatively analyze the value of transvaginal ultrasonography and magnetic resonance imaging (MRI) in the diagnosis of endometrial carcinoma. Methods 70 patients with pathologically confirmed endometrial carcinoma treated in our hospital from January 2014 to August 2017 were selected. They were examined by transvaginal ultrasonography and MRI before operation, and imaging findings were observed. With pathological results as the standard, the sensitivities and accuracies of transvaginal ultrasonography and MRI in diagnosis of preoperative stage were comparatively analyzed. Results Transvaginal ultrasonography detected that there were 41 cases at stage I, showing endometrial thickening, strong internal echo or uneven echo, 21 cases at stage II showing endometrial extension mass shadow, and 8 cases at stage III showing incomplete perimetrium or adnexal mass shadow. MRI detected that there were 41 cases at stage I showing intimal thickening and complete outline of myometrium, 22 cases at stage II showing cervical invasion and internal low signal, and 7 cases at stage III showing persistent interruption signal of external myometrium or invasion near the uterus. With operation and pathology as the standard, the accuracy of transvaginal ultrasonography in staging endometrial carcinoma was 87.14%, compared with 91.43% of MRI, there was a statistically significant difference (P<0.05). Conclusion Transvaginal ultrasonography and MRI are of great significance in the diagnosis of endometrial carcinoma before operation.