Fig. 3.

Diffusion MRI connectometry applied to a normal subject and to a patient with chronic stroke. The local tract orientations with diffusion quantities lower than 50th, 25th, and 5th percentile ranks were plotted with directional color coding. Both the control and the patient showed abundant local tract orientations with percentile ranks lower than 50, although very few local tract orientations with a percentile lower than 5 remained in the normal subject. The stroke patient displayed many fiber tracts affected by the stroke in the right internal capsule and right corpus callosum, where the local tract orientations were lower than the 5th percentile.