Fig. 2

Axial computed tomographic images at three levels (a, b, c). Modified Alberta Stroke Program Early Computed Tomography Score (ASPECTS) was used for analysis of images. The score was used to interpret the whole brain. It was not limited to specific slices. See Table 1 for further details. Bilateral yellow regions indicate ASPECTS-b (extended to both sides from the original ASPECTS protocol). Combined bilateral regions of yellow and red indicate modified ASPECTS. A1 Anterior cerebral artery (ACA) lower, A2 ACA upper, ASPECTS-b Bilateral ASPECTS, B Brainstem, C Caudate, CL Cerebellum, I Insula, IC Internal capsule, L Lentiform nucleus, M1–M6 Middle cerebral artery territories, mASPECTS Modified ASPECTS, P1 Posterior cerebral artery (PCA) lower, P2 PCA upper