Intraluminal diameters of middle cerebral branches for microanastomoses

Intraluminal diameter measurements of the branches of the middle cerebral artery were taken from 50 adult human cerebral hemispheres of a routine autopsy service. The measurements were confined to the cortical branches found on the surface of the brain located over the lateral hemisphere, with the center at the transverse gyrus of Heschl and extending over the circular portion of the brain, with a diameter of approximation 6 cm. It was hoped that these measurements would assist in the appropriate choice of artery for microanastomosis in the superficial temporal artery bypass procedure, now being done for enhancement of cortical perfusion.