摘要
目的:探讨子宫腺肌症低场MRI表现及其诊断价值。方法:回顾性分析手术病理证实的35例子宫腺肌症MRI图像,并与病理对照研究。结果:弥漫型子宫腺肌症12例,9例结合带弥漫性均匀或不均匀增厚,3例结合带显示不清,T2WI表现结合带-肌壁弥漫性增厚,呈与结合带信号相近低信号病灶中夹杂点状、短条状或小囊状高信号,T1WI等信号10例、点状或小囊状高信号2例;局限型子宫腺肌症(腺肌瘤)23例26个肿块,后壁14个、前壁10个、底壁2个,紧靠子宫内膜边缘21个、邻近5个,为卵圆形、不规则形或类圆形,边缘模糊22个、较清楚4个。T2WI肿块均与结合带信号相近低信号内夹杂灶性高信号,T1WI肿块呈稍低或等信号,其中9个夹杂少量灶性高信号。结论:①子宫腺肌症的低场MRI表现具有特征性,能够反映本病的病理改变,其形态学特点是结合带-肌壁弥漫性增厚或呈边界不清的肿块,其信号特点是低信号区内混杂灶性高信号(T2WI高信号灶为异位内膜岛,T1WI高信号为出血灶);②矢状T2WI及IRF-SET2WI图像对病灶显示最清晰,是子宫腺肌症MRI最佳扫描序列。
Objective:To investigate the low-field MR features of adenomyosis and its diagnostic value.Methods:35 patients with adenomyosis confirmed by histopathology,who underwent MRI examination,were reviewed.MRI features and pathologic findings were compared.Results:12 cases were diagnosed with diffuse uterine adenomyosis.Nine showed diffusely thickened junctional zone.Three showed ill-defined margins.The lesions of uterine adenomyoses displayed hypo-intensive masses as the thickened junctional zone on T2WI,meanwhile,the lesions compried spot,coliform or sacculiform high-signal.10 cases appeared as equel-signal on T1W1,2 cases appeared as spot or orsacculiform high-signal.23 patients presented with topical uterine leinmynma,total 26 lesions were detected by MRI.There were 14 lesions in the posterior wall,10 lesions in the anterior wall,2 lesions in the basel wall,21 lesions were in the border of endometrium,five near the endometrium,22 lesions showed ill-defined margins,while 4 lesions defined margins. On T2WI,the lesions showed hypointensity as junctional zone with heterogeneous signals,the lesions showed slightly hypo-intensity or equel intensity on T1WI,Among the total,9 cases apreared local heterogeneous signals.Conclusion: ① uterine adenomyosis has characteristic apprearences which can manifest the pathologic feature in low field MRI.The shape appears diffusely thickened junctional zone or ill-defined margins.The MR imaging of uterine adenomyoses displays hypo-intensive masses with high-signal.(endometrial glands appear spot high-signal on T2WI.High-signals on T1WI prompt endometrial glands);② The lesions are identified clearly by sagittal T2WI and IRFSET2WI.Both are the most proper MRI sequenee of uterine adenomyosis.
出处
《医学影像学杂志》
2010年第12期1856-1859,共4页
Journal of Medical Imaging
关键词
子宫腺肌症
磁共振成像
Uterine adenomyosis
Magnetic resonance imaging
