fig4

Figure 4. A spectrum of PCS perfusion patterns involving the posterior cerebral artery territory (PCA). From left to right displayed imaging includes: mean transit time, delay time, cerebral blood volume, cerebral blood flow, automated core-penumbra map and 24 h diffusion weighted MRI. Perfusion maps generated using MiStar neuroperfusion package. (A) Bilateral PCA stroke due to distal basilar artery occlusion. (B) Left PCA stroke due to a left P1 segment occlusion. (C) Right PCA territory infarction due to a right P1 segment occlusion. PCS perfusion patterns involving the cerebellar hemispheres. From left to right displayed imaging includes: mean transit time, delay time, cerebral blood volume, cerebral blood flow, automated core-penumbra map and 24 h imaging (diffusion weighted MRI or non-contrast CT brain). Perfusion maps generated using MiStar neuroperfusion package. (D) A mid basilar occlusion causing a significant brainstem and right cerebellar perfusion lesion. No visible occlusion on vessel imaging with a (E) left and (F) right posterior inferior cerebellar artery territory stroke. PCS: Posterior circulation acute ischaemic strokes.