Perfusion-weighted MR examination.

<p>Regions of interest (ROI) on a perfusion map of cerebral blood volume (CBV) were located in the following regions: bilateral temporoparietal cortices (<b>A</b>), bilateral frontal association cortices and the posterior cingulate gyrus region (<b>B</b>), bilateral frontoparietal white matter (<b>C</b>), bilateral basal ganglia regions (<b>D</b>).