Figure 2. Representative perfusion and intensity images.

The regions of interest used to measure perfusion are shown on the intensity image. Olf – olfactory area, SSS – superior sagittal sinus, PFCx – prefrontal cortex, LPCx – left parietal cortex, RPCx – right parietal cortex, and Tr. Sinus – transverse sinus. The whole brain comprised the area around all the regions of interest.