MRI低信号分隔在乳腺纤维腺瘤诊断中的价值  

Internal separation sign of MRI in diagnosis of fibroadenoma of breast

作　　者：李明[1] 乔鹏岗[1] 陆虹[1] 马锦琳[1] 王怀涛[2] 李功杰[1] 

机构地区：[1]军事医学科学院附属医院放射科,北京100071 [2]军事医学科学院附属医院病理科,北京100071

出　　处：《医学影像学杂志》2016年第1期61-63,共3页Journal of Medical Imaging

摘　　要：目的评价MRI低信号分隔征在乳腺纤维腺瘤诊断中的价值。方法回顾性分析经手术病理证实的52例共54个乳腺纤维腺瘤的MRI表现特点,分析低信号分隔征的鉴别诊断价值。结果 54个乳腺纤维腺瘤中,37个纤维腺瘤在MRI可观察到低信号分隔,发生率为69%(37/54);其中29个病灶分隔厚度小于2mm,8个病灶厚度大于2mm。37个病灶低信号分隔在T1WI脂肪抑制序列均观察不清,33个病灶在T2WI脂肪抑制序列可观察到低信号分隔,在T1WI增强序列均可观察到。结论低信号分隔征是诊断乳腺纤维腺瘤较特异的征象之一,并且T1WI增强序列观察最佳。Objective To evaluate the value of internal separation sign of MRI in diagnosis of fibroadenoma of breast. Methotis We retrospectively analyzed MRI features of 54 fibroadenoma lesions in 52 patients proved by operation and pathology and the diagnostic value of internal separation sign. Results Internal separation sign could be observed in 37 lesions with a incidence rate of 69% （37/54）, the thickness of 29 lesions were less than 2 cm and 8 lesions were over 2 cm. On Tlweighted images （T1WI） with fat suppression, the internal separation sign could not be observed clearly in all the 37 lesions. T2 weighted images （ T2WI） with fat suppression could show the internal separation sign in 33 lesions, while contrasted T1WI showed the internal separation sign in 37 lesions. Conclusion The internal separation sign of MRI is one of the special signs for the diagnosis of fibroadenoma of breast, and contrasted T1WI is the best sequence to show the internal separation sign.

关 键 词：乳腺纤维腺瘤 低信号分隔 病理 磁共振成像 

分 类 号：R737.9[医药卫生—肿瘤] R445.2[医药卫生—临床医学]