Scan-rescan and statistical prediction MSEs. For each DTI measure, acquired scan-rescan MSE (green) and statistical prediction MSE (orange) are shown in lesion, GM, and NAWM. In NAWM the prediction MSEs in MD (a) and RD (b) are similar to scan-rescan MSEs, but these are slightly larger in AD (c) and FA (d). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)