46例子宫腺肌症的MRI征象分析

MRI Features of Uterine Adenomyosis (46 Cases)

目的:分析子宫腺肌症的MRI表现及其诊断价值。方法:回顾性分析46例经手术病理证实的子宫腺肌症患者的MRI资料,并与术后病理学结果进行对照分析。结果:MRI检查结果与手术病理结果有高度的一致性。子宫腺肌症的MRI主要表现:①T2WI和翻转恢复序列图像显示结合带弥漫性或局限性增厚(12 mm),或者外肌层内见信号类似结合带的边界欠清的肿块;②T2WI病灶内出现点状或斑片状高信号灶,有时T1WI时也可出现;③T1WI增强扫描示病灶强化程度近似结合带;④子宫体积增大,轮廓光整;⑤T2WI和翻转恢复序列图像有时显示子宫带状分层结构(内膜、结合带)变形。

Objective：To study the MRI features and its diagnostic value of uterine adenomyosis. Methods： MRI fea tures of 46 cases of uterine adenomyosis proved by surgery and pathology were reviewed and correlated with pathology manifestations. Results： MRI and pathology findings were highly consistent. The main MRI features of uterine adenomyosis were as follows：①On T2WI and IR sequences,diffuse or focal widening （more than 12 mm） of junctional zone,or a focal mass with indistinct margin in the outer layer of myometrium can be revealed and the signal intensity was similar to that of junctional zone;②High signal intensity spots appeared on T2WI, sometimes can also be seen on T1 WI; ③On contrast-enhanced T1 WI,the signal intensity of adenomyosis was similar to that of juctional zone;④Uterine enlargement with well-de fined contour⑤ On T2WI and IR sequences, distortion of uterine structures （endometrium,juctional zone） was shown. Conclusion： MRI is a very helpful modality in the diagnosis and localization of adenomyosis.