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

am0: adjusted model, adjusted for lesion volume, sex, thrombolysis, NIHSS).bm1: m0 additionally adjusted for age.cm2: m1 additionally adjusted for time (stroke-to-imaging).dm3: m1 and rater specific DWI-ROI values.At both 1.5 and 3 T, adding the ROI-values for each rater (model 3[m3]) as a variable led to good accuracy for the prediction of FLAIR-hyperintensities for each rater in comparison with the basic models (m0 and m1). The AUC was comparable to m2, which was based on “time-from-stroke-onset”. Lack of a significant difference between m2 and m3 emphasizes the close association between time-from-stroke-onset and relative DWI-values. Please see figure 3 for the respective ROC-curves for each model. AUC, Area under the curve; ROI, Region of Interest.