MRCP对恶性胆道狭窄的诊断价值

目的：通过与ＥＲＣＰ／ＰＴＣ对比，评价ＭＲＣＰ对恶性胆道狭窄的定位、定性的准确性。材料与方法５７例恶性胆道狭窄患者，采用不屏气或屏气快速自旋回波（ＦＳＥ）序列扫描，对照ＥＲＣＰ或ＰＴＣ检查和病理结果，评价ＭＲＣＰ对恶性胆道狭窄征象的显示能力。结果：ＭＲＣＰ诊断恶性胆道狭窄的定位准确性分别为１００％和８７．８％，经统计学检验证实与ＥＲＣＰ／ＰＴＣ不存在显著性差异。对病变胆管截断、狭窄及管壁不规则等征

The value of magnetic resonance cholangiopancreatography in the diagnosis of malignant biliary strictures

Objective:To compare the findings of magnetic resonance cholangiopancreatography(MRCP) with that of ERCP or PTC in biliary strictures and evaluate the accuracy of MRCP in determing the site and causes of biliary strictures.Materials and Methods:57 patients with suspected malignant biliary strictures were examined by MRCP with Fast Spin Echo sequence with or without breath-hold technique.The results of MRCP were compared with that of ERCP or PTC and pathology.Results:The accuracy of MRCP for obstructive level was 100.0%;the specificity for the cause of obstruction was about 87.8%.There is no significant difference between MRCP,ERCP or PTC.In demonstrating the signs such as biliary truncation and stricture and irregularity,MRCP can display 74.0% of the latter.MRCP can display 77.2% tumors all in all.Conclusion:The accuracy of MRCP in determing the site and causes of malignant biliary strictures is similar to that of ERCP and PTC,but its specificity to display the shape of biliary stricture is not good as the latter.