子宫肿块的MRI诊断

MR image of uterine masses

目的 :分析子宫肿块的MRI表现 ,探讨MRI的诊断价值及其诊断能力。方法 :对经手术病理证实的 3 8例(69个病灶 )子宫肿块的MRI表现进行回顾性分析 ,并与超声检查相对比。结果 :良性病变 2 6例 ,分别为子宫平滑肌瘤、腺肌病、慢性血肿。恶性病变 15例 ,分别为子宫内膜癌、宫颈癌、子宫平滑肌肉瘤、滋养细胞肿瘤和转移瘤。有 3例良恶性肿瘤同时并存。所有病例均于T2 WI显示较好 ,T1WI对于判断肿瘤是否宫外侵犯较有帮助。MRI对子宫肿块的检出率和诊断的正确率分别为 94.2 %、89.8% ,均高于B超 (82 .6%、75 .3 % )。结论 :MRI能较准确地显示病灶数目、大小、范围、内部结构及与周围的关系 。

Objective:To analyse MRI features of uterine masses and to evaluate the diagnostic capability of MRI.Methods:MRI features of 69 uterine masses in 38 patients confirmed by surgical and pathological findings were analyzed retrospectively and compared with ultrasonographic findings.Results:There were 26 cases of the benign lesions including uterine leiomyoma, adenomysis, and chronic hemotomata; and 15 cases of the malignant tumors including endometrial carcinoma, cervical carcinoma, uterine leiomyosarcoma, gestational trophoblastic neoplasia and uterine metastases, among which there were 3 cases with coexisting benign and malignant tumors. All the cases were defined clearly on T 2WI, while T 1WI was helpful in demonstrating the extension of tumors beyond the uterus. The rate of the detectability and accuracy of MRI for diagnosis of uterine tumors was 94.2% and 89.8%, respectively, which was higher than that by ultrasound( 82.6% and 75.3% respectively). Conclusion:MRI can show the number, size and extent of the mass, and the relationship between the internal structure and its surroundings more accurately. It suggested that MRI is of great value in differentiating the benign tumor from the malignant and staging of malignant neoplasms.