ROC分析评价MRI和MSCT对肝外胆管癌的诊断价值

Diagnostic Value of MRI and MSCT in Extrahepatic Cholangiocarcinoma Evaluated by ROC

目的用接受器工作特性曲线(ROC)分析评价多层螺旋CT(MSCT)和MRI对肝外胆管癌的诊断价值。资料与方法以手术和病理结果为金标准,对23例肝外胆管癌和30例胆胰系统其他疾病患者完整的MSCT和MRI资料进行回顾性诊断分析。用SPSS11.0软件对上述诊断结果进行ROC分析研究。结果ROC分析显示MSCT诊断肝外胆管癌的ROC曲线下面积ACT=0.946,MRI诊断肝外胆管癌的ROC曲线下面积AMR=0.926。经Z检验(Z=0.38,P>0.05),两者之间差异无统计学意义。结论MSCT和MRI均是诊断肝外胆管癌的有效方法。

Objective To evaluate the diagnostic value of MRI and MSCT in extrahepatic cholangiocarcinoma using receiver operating characteristic （ROC） curve analysis. Materials and Methods MSCT and MRI data of 23 patients with extrahepatic cholangiocarcinoma and 30 patients with other pancreaticobiliary diseases with surgical and pathologic results were retrospectively analyzed. ROC curves were analyzed with SPSS11.0 software. Results Area under the ROC curve of MSCT for extrahepatic cholartgioearcinoma was （ ACT = 0.946）, and area under the ROC curve of MRI for extrahepatic cholangiocarcinoma was （ AMR = 0. 926）. By Z-test （ Z = 0. 38, P 〉 0.05）, there was no significant difference between MSCT and MRI in the diagnosis of extrahepatic cholangioearcinoma. Conclusion Both MSCT and MRI are effective methods in the diagnosis of extrahepatic cholangiocarcinoma.