MRC对胆道梗阻诊断的探讨  

Study on the Diagnosis Value of MRC for Biliary Obstruction

作　　者：高雪梅[1,2] 黎庶[1,2] 马述盛 张景荣[1,2] 张振华 

机构地区：[1]河南医科大学一附院放射科 [2]中国医科大学第一临床学院放射科

出　　处：《临床放射学杂志》1998年第5期284-287,共4页Journal of Clinical Radiology

摘　　要：目的：探讨ＭＲＣ对高、低位胆道梗阻的诊断价值和限度。材料与方法：分析３０例胆道梗阻患者和５例健康自愿者ＭＲＣ和常规ＭＲＩ表现。结果：３０例定位诊断均准确，其中高位梗阻１０例，低位梗阻２０例。高位梗阻ＭＲＣ能显示狭窄范围，但梗阻端形态缺乏特征性；常规ＭＲＩ显示恶性肿物者６／９例。低位梗阻ＭＲＣ显示的近端形态具有特征性，良性者呈腔内圆形、柱状无信号区或移行性狭窄；恶性者表现为双管截断征和不规则狭窄；常规ＭＲＩ显示恶性肿物８／１１例。结论：ＭＲＣ定位诊断准确，对低位梗阻可作出定性诊断；但高位梗阻形态缺乏特征性，其定性诊断需结合常规ＭＲＩ。Objective: To explore the diagnosis value and limitation of MR cholangiography (MRC) for high and low level biliary obstruction.Materials and Methods:The features of MRC and conventional MRI were analyzed in 30 patients with biliary obstruction and 5 healthy volunteer.Results:The biliary obstruction was accurately located with MRC in 10 patients with high level biliary obstruction and 20 patients with low level biliary stenosis. In high level biliary obstruction, the range of obstruction was visualized, but the shape of the obstrution had no feature. Tumors were depicted with conventional MRI in 6 of 9 patients with malignacy. In low level biliary obstruction, the morphology proximal to the obstruction was characteristic with intraluminal round or pillar type signal void or gradual stenosis in benign obstruction, and amputation sign of “double ducts” and irregular stenosis in malignant obstruction. Conventional MRI demonstrated tumors in 8 of 11 patients with malignant tumors.Conclusion: MRC could accurately visualized the location of biliary obstruction, and could diagnose qualitatively for low level biliary obstruction to fixed location of high level biliary obstruction should combine with conventional MRI.

关 键 词：胆道梗阻 磁共振成像 MRC 诊断 

分 类 号：R657.430.4[医药卫生—外科学] R445.2[医药卫生—临床医学]