磁共振胰胆管成像的临床应用

Clinical Application of Magnetic Resonance Cholangiopancreatography

用重T2WI对 2 1例无胰胆管系统症状者和 38例结石、胰头癌、胆管癌者行磁共振胰胆管成像 (MRCP)。采用快速自旋回波 (FSE)、图象经三维 (3D)最大信号强度投影 (MIP)处理。结果 :2 1例无胰胆管系症状无扩张。 38例胰胆管病症患者充分显示胰胆管形态 ,展示各种疾病的异常改变。本组MRCP定位诊断率为 10 0 % ,定性诊断率为84 4%。表明 :MRCP对胆系梗阻疾病的定位诊断准确 ,结合原始图象对结石的定性诊断特异性高。

On 21 cases with no cholangiopancreaographic symptoms and 38 cases of choledocholithiais, pancreatic head carcinoma, cholangiocarcinoma, etc, heavily T\-2-weighted MRCP was performed with fast spin echo(FSE) sequence. The resulting slices were then projected into a composite image by using 3D as a standard maxium intensity projection(MIP) algorithum. No dilatation was observed in the former 21 cases. While in the latter cases, a full display was found of the abnormal changes of the various diseases. The locating diagnosis of MRCP for the latter group is 100% and qualitative diagnosis 84.4%, which suggests that MRCP is accurate and specific for the qualitative diagnosis of choledocholithiais if combined with orginal image.