磁共振胆胰管成像与B超对胆胰疾病诊断的价值

目的利用ROC曲线评估磁共振胆胰管成像（MRCP）与B超对胆胰系统疾病的诊断效能，探讨MRCP的临床应用价值。方法以2002年至2004年拟诊胆胰系统疾病的62例病例为研究对象，所有病例均有完整的MRCP、B超及最终诊断资料，应用ROCKIT软件进行ROC分析。结果MRCP与B超均是诊断胆胰系统疾病的有效方法，但MRCP的诊断准确率高于B超（MRCP的ROC曲线下面积a=0．930，B超的ROC曲线下面积a=0．739）。特别是在胆总管下段疾病的诊断上，MRCP明显优于B超。结论MRCP作为一种无创性检查，对胆胰疾病有很好的定位诊断效能，与原始图像相结合分析有助于判断病因。

MR cholangiopancreatography in comparison with ultrasound in the diagnosis of cholangiopancreatic disease

Objective To evaluate the diagnostic value of MRCP compared with ultrasound in patients with cholangiopancreatic disease by ROC curve. Methods The data of 62 patients with suspected cholangiopancreatic disease undergoing both MRCP and ultrasound were retrospectively studied. ROC analysis was performed by ROCKIT software. Results Area under the ROC curve of MRCP was 0, 739. Area under the ROC curve of US was 0, 930. ROC analysis showed that these two modalities were effective in diagnosing cholangiopancreatic disease, with MRCP being more effective than ultrasound, especially for the diagosis of lower biliary tract diseases. Conclusion MRCP combined with MRCP source images is of great help in the diagnosis of pancreaticobiliary duct diseases.