Comparison of DTI indices between NAWM and WMH at baseline.

<p>Boxplots illustrate the values distribution (y-axis) of the fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD) and radial diffusivity (RD) indices within the normal-appearing white matter (NAWM) and within the white matter hyperintensity (WMH) areas. FA expressed in arbitrary units; MD, AD and RD expressed as μm²/sec. Baseline sample, N = 86. *** Statistical significance of p≤10⁻⁷ in Wilcoxon signed rank one-sample test.