磁共振胆胰管成像的形态学改变与阻塞性病变性质的对比研究

Correlative study of MRCP morphologic changes to the nature of the biliary obstructive lesions

目的 :探讨MRCP的形态学改变与胆管阻塞性病变性质的相关性。方法 :48例胆管阻塞性病变 (良性和恶性各 2 4例 )进行了MRCP检查 ,将MRCP表现与手术和病理结果作比较。结果 :恶性病变的阻塞程度严重 ,近侧胆管分支成比例地扩张 ,可达包膜下 ,呈软藤状 ;阻塞端呈圆钝状、平直、突然截断等 ,良性病变的胆管扩张程度较轻 ,胆管分支如枯枝状或残根状 ,阻塞端表现为杯口状或充盈缺损 (结石 )或粗细不均。结论

Objective:To study the correlation between MRCP features and nature of the biliary obstructive lesions.Methods:48 cases of biliary obstractive disease (24 benign and 24 malignant lesions) were exausined with MRCP. The MRCP findings were correlated with operative and pathological results. Results:The obstruction in malignant lesions was severe. The proximal bile ducts were proportionally dilated, often like soft rattan.The obstractive end appeared blant or flat, or abruptly interrupted etc.In benign lesions the biliary ducts appeared as withered tree,and the obstructive end showed cupping or filling defuts. Conclusion:Based on degree of obstruction and morphologic changes of bile ducts, the nature of biliary obstractive lesions can be accurately deterucined.