Mandell, J. (2013). Core Radiology: A Visual Approach to Diagnostic Imaging. Cambridge: Cambridge University Press. doi:10.1017/CBO9781139225762

Mandell, J. (2013). Core Radiology: A Visual Approach to Diagnostic Imaging. Cambridge: Cambridge University Press. doi:10.1017/CBO9781139225762

Segments Extent Branches Supply
M1 (Horizontal) Segment M1 extends from the ICA terminus to the origin of the Sylvian fissure. Lateral lenticulostriate arteries Lateral putamen, caudate nucleus, and external capsule
Anterior temporal artery Tip of the temporal lobe
M2 (Insular) Segments M2 extends posteriorly from the bottom to the top of the Sylvian fissure. M2 (insular) MCA segmental arteries Sweep upward over the surface of the insula
M3 (Opercular) Segments M3 extends laterally from the top of the Sylvian fissure to the cortical surface. Opercula of the frontal, parietal, and temporal lobes
M4 (Cortical) Segments M4 represents small cortical branches Varied branching Cortical supply