子宫腺肌症的MRI表现及诊断价值

目的探讨子宫腺肌症MRI特点及其诊断价值。方法回顾性分析经手术病理证实的31例子宫腺肌症的临床及MRI资料,应用自旋回波和快速自旋回波序列,常规行横断面FSE T2WI、SE T1WI及矢状面FSE T2WI扫描,其中10例病人加扫子宫解剖轴位及矢状位脂肪抑制FSE T2WI序列,分析其MR表现。结果弥漫性子宫腺肌症19例,以后壁结合带明显增厚为主的有11例。局限性子宫腺肌症12例,病变位于后壁7例,前壁4例,底部为主1例。28例T2WI呈与结合带信号相近的低信号影为主,内可见多发散在点状、小囊状高信号灶,21例T1WI呈与子宫肌层等信号,其中9例于T1WI也见点状、小囊状高信号。3例于肌层内见局限性类圆形结合带样信号。结论MRI可明确子宫腺肌症的范围及部位,脂肪抑制序列是非常有价值的检查方法。

MRI Features and Diagnostic Value in Adenomyosis

Objective To analyze MRI features and diagnostic value in adenomyosis.Methods Clinical and MRI data of 31 cases of adenomyosis confirmed by pathology were retrospectively analyzed.Turbo FSE T2WI,SE T1WI,and sagittal Turbo FSE T2WI examination were performed in all cases,10 of them were added to anatomic and sagittal fat-suppression(FS) T2WI scan.MR features of adenomyosis were analysed.Results In 19 cases of diffuse uterine adenomyosis,11 cases mainly showed diffusely thichened junctional zone of posterior wall.12 cases were focal uterine adenomyosis,the lesions located at posterior wall in 7 cases,front wall in 4 cases and bottom part in 1 case.28 cases displayed hypointensive masses like the intensity of junctional zone on T2WI and vesicular hyperintensive foci were found within the hypointensive lesions.The lesions in 21 cases were similar to that of myometrium on T1WI,9 of them displayed vesicular hyperintensive foci.Focal round-like junctional zone low signal intensity lesion in myometrial layer was found in 3 cases.Conclusion MRI can clearly determine the size and site of adenomyosis.FS is the valuable examination way.