Detailed results of the unadjusted ROC analysis for all 3 raters at 1.5 and 3 T.

At both 1.5 and 3 T, the ability of a relative DWI- or ADC threshold to predict the presence of lesion in FLAIR-imaging was investigated individually for 3 raters. The given threshold is the optimal relative intensity value cutoff determined by the Youden-Index. For each threshold, the corresponding sensitivity, specificity, PPV and NPV and their means are shown. 95% confidence intervals are given for each individual AUC. DWI-rSI performed better in discriminating hyperintensities in FLAIR imaging than ADC-rSI. AUC, Area under the curve; PPV, positive predictive value; NPV, negative predictive value.