Bile Duct Strictures Caused by Solid Masses: MR in Differential Diagnosis and as a Prognostic Tool to Plan the Endoscopic Treatment

Table 1

PPV and NPV in detecting the malignancy with SIR calculated for cut-off levels.

Image	ROC level	Accuracy %	PPV %	NPV %
Axial T2W	1,1006	79,7	87,5	67,7
Axial STIR T2W	1,1010	79,4	84,8	65,2
Coronal T2W	1,1173	75,4	85,7	61,5