ROC Curve of Negative Multi-detector Row CT Cholangiopancreatography in Patients with Suspected Obstructive Biliary Diseases
- VernacularTitle:ROC曲线法评价MDCT阴性法胰胆管成像在疑诊胆道梗阻中的应用
- Author:
Xiaoshan GUO
;
Mei WU
;
Xinqun ZENG
;
Wei WEN
;
Changquan WANG
- Publication Type:Journal Article
- Keywords:
obstruction of biliary tract;
cholangiopancreatography;
tomography ,X-ray computed;
ROC curve
- From:
Journal of Practical Radiology
2001;0(06):-
- CountryChina
- Language:Chinese
-
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.
