【摘要】 目的应用ROC曲线法探讨MDCT阴性法胰胆管成像在临床疑诊胆道梗阻中的诊断价值。方法30例患者行MDCT动、静脉双期增强扫描,利用静脉期原始数据进行多平面重建、容积再现以及最低密度成像重建。由2位资深医师双盲法读片,使用SPSS11.5进行ROC曲线分析,阅片者间差异性评价采用Kappa一致性检验。结果2位阅片医师对MDCT阴性法胰胆管成像检查的ROC曲线下的面积AZ值分别为00.968、0.962,均>0.9,表明其诊断价值较高。2位阅片医师间诊断结果的一致性检验相当满意(K=0.865)。结论MDCT阴性法胰胆管成像检查可以作为临床疑诊胆道梗阻性疾病的常规检查方法。更多还原

【Abstract】 Objective To evaluate the value of diagnostic negative MDCT cholangiopancreatography in patients with suspected obstructive biliary diseases by receiver operating characteristic(ROC)curve. Methods Dual-phases contrast-enhanced MDCT of the abdomen was performed in 30 patients.Multiplanar reformation,minimum intensity projection and volume rendering were generated using original data in vein phase.By double-blind method,the images were readed by two radiologists.ROC curves were analysed with software SPSS11.5,the different results of reading images between two radiologists was evaluated with Kappa test.Results The Az of the area under the ROC curve of MDCT cholangiopancreatography for the two observers was 0.968 and 0.962 respectively,it was more than 0.9,which showed that the value of diagnosing the suspected obstructive biliary diseases by negative MDCT cholangiopancreatography was good.Kappa index test was satisfactory.Conclusion Negative MDCT cholangiopancreatography may be a routine choice in diagnosing the suspected obstructive biliary diseases.更多还原