Fig. 2.
CBF was low in the ipsilateral hemispheres at 1 h after stroke onset (a). The CBF map obtained at 48 h after stroke showed an elevated cerebral perfusion of the ipsilateral cortex (b). The ipsilateral cortical or striatal tissue exhibited bright or dark microvessels (c), because of high or low blood perfusion, respectively. Contralateral cortex and striatal tissue presented bright microvessels because of its normal blood perfusion (d)