15例子宫平滑肌瘤MRI征象分析

目的：通过手术病理对照，分析了１５例子宫产滑肌瘤的ＭＲＩ表现。探讨子宫平滑肌瘤的ＭＲＩ征象及诊断意义，材料与方法：１５例患者包括单发者１０例，多发者５例，ＭＲＩ检查采用Ｄｉａｓｏｎｉｃｓ０．３５Ｔ超导成像系统，行横断面和／或矢状面Ｔ１、Ｔ２加权成像，观察ＭＲＩ对子宫肌瘤的定位及定量价值，总结其信号变化规律。结果：ＭＲＩ共发现病灶３５个，病灶发现率８７．５％（手术发现４０个），包括浆膜下１０个，肌内

MRI of Uterine Leiomyomas: Report of 15 Cases

bjective: To evaluate the value of MRI in diagnosing uterine leiomyomas.Materials and Methods: 15 patients were examined by a 0.35T super conducted MR imaging system, T 1 and T 2 weighted imaging were performed on both axial and sagital planes. The MRI features of 35 lesions in 15 patients with uterine leiomyomas were analysed by comparison with surgical and pathological findings retrospectively.Results: 87.5% lesions can be found on MRI images, including 10 from sub serosa, 23 from myometrium and 2 from endometrium. The accuracy of MRI localization is 88.6%. The signal intensity of most tumors (33) on T 1WI is iso to hypo intensity, only 2 is hyper intensity; while the signal intensities of all lesions on T 2WI are hyper than skeletel muscles and lower than myometriums, the changing patterns (changes on different echos of T 2 weighted imagings) are similar to that of skeletel muscles.Conclusion: MRI is a cha racteristic and the best methods for the diagnosis of uterine leiomyomas.