Figure 1: Obtained from http://www.aspectsinstroke.com/, demonstrating the ASPECTS scoring methodology, axial NCCT images showing the MCA territory regions as defined by ASPECTS. C, caudate, I, insularribbon, IC, internal Capsule, L, lentiform nucleus, M1, anterior MCAcortex, M2, MCA cortex lateral to the insular ribbon, M3, posteriorMCA cortex, M4, M5, M6 are the anterior, lateral, and posterior MCAterritories immediately superior to M1, M2, and M3, rostral to basal ganglia. Subcortical structures are allotted 3 points (C, L, and IC). MCA cortex is allotted 7 points (insular cortex, M1, M2, M3, M4, M5, and M6). (Reprint permission obtained from Dr. Mayank Goyal, professor of radiology and clinical neurosciences, Foothills Medical Centre, University of Calgary).