Figure 4

Histograms of normal-appearing white matter. Fractional anisotropy (A) and mean diffusivity (B) histograms of normal-appearing white matter of the patient in the first (blue line) and second (green line) scans and the 19 normal control subjects (black lines) over all voxels in the brain (top of the panel). The bottoms of each panel display the correspondent fractional anisotropy and mean diffusivity maps. Color-bars indicate fractional anisotropy (arbitrary units) and mean diffusivity (mm²/sec) values.