Fig. 7.
Correlations between DTI index (FA or MD) and WML intensity are estimated in each voxel across all subjects. The images in the upper and lower rows correspond to 2 axial slices in the normalized space, and the lower one is identical to the axial slice used in Fig. 6. The blue clusters in columns (a) and (b) are negative FA-WML intensity correlations selected at p<0.001, overlaid on the mean FA and mean WML maps, respectively. The red clusters in columns (b) and (c) represent the positive correlations between MD and WML intensity, overlaid on the mean FA and mean WML intensity maps.
