子宫腺肌症的MRI征象17例分析

MRI symptom of uterine adenomyosis:An analysis of 17 cases

目的:探讨MRI对子宫腺肌症的诊断价值。方法:17例子宫腺肌症患者行矢状面、横断面SE序列T1WI、FSE序列T2WI及FIR序列T2STIR扫描,必要时行冠状面扫描,2例行增强扫描。17例均经手术病理证实。结果:弥漫型子宫腺肌症8例,结合带弥漫性均匀或不均匀增宽,其中5例病变T2WI呈较均匀低信号,内有散在点状高信号,另3例于T1WI亦可见点状高信号。局限型子宫腺肌症9例,结合带局限性增宽,共有15个病灶,T2WI上其信号与结合带相似,呈类圆形或不规则样肿块;8个病灶内见点状高信号,其中6个病灶在T1WI上亦有点状高信号。17例子宫均增大,伴有平滑肌瘤者轮廓有凸起。增强后病灶呈结合带样强化。结论:MRI对子宫腺肌症的定性,定位具有较高的诊断价值。

Objective：To investigate the value of MRI in diagnosis of uterine adenomyosis. Methods：Seventeen cases of adenomyosis confirmed by pathology were performed sagittal, traverse or coronary scans of SET1WI, FSE T2WI, and FIR sequences T2 SPIR MRI examination,and 2 cases received enhanced scanning, Results：Eight cases with diffuse adenomyosis demonstrated diffusely equably or unequably thickened junctional zone（JZ） ,5 cases showed homonenous hypointensity with hyperintensive foci within the hypointensive lesions on T2WI, and 3 cases were found hyperintensive foci on T1WI. Fifteen focal lesions in 9 cases, whose junctional tone was limitedly thickened,were oval,irrenular or round masses with hypointensity which were the same as the intensity of JZ on T2WI. Eight of them had hyperintensive foci within the hypointensive and 6 of the 8 also presented hyperintensive on T1WI. All the cases showed enlargement of uterus,and the cases with myoma of uterus showed bulginess on the outline. All enhanced lesions were thickened as the junction zone. Conclusions：MRI is of great value in diagnosis and localization of uterine adenomysis.