FIGURE 2.

TOF MRA images and corresponding images of vasculature after Evans Blue perfusion. TOF-MR angiography 24 h after fMCAo readily images the circle of Willis and PcomA (A–E). Evans Blue perfusion 7 days after fMCAo clearly depicts the corresponding vasculature (F–J). Yellow boxes highlight the PcomA ipsilateral to the ischemic lesion. Individual data points of images (A–J), respectively, comparing readings of PcomA diameter as percentage of basilar artery diameter from MRA and from images after Evans Blue perfusion (K). PCA – posterior cerebral artery, PcomA – posterior communicating artery, SCA – superior cerebellar artery.