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Hemodynamic Study of Posterior Circulation Using Hydraulic Vascular Model
A hydraulic vascular model with glass and silicone tubes of the intracranial portion of the vertebrobasilar artery was used to determine the critical stenosis causing vertebrobasilar insufficiency, and the minimum diameter of the posterior communicating arteries (PComAs) necessary to tolerate thera peutic vertebrobasilar occlusion for unclippable aneurysms. The critical stenosis of one vertebral artery (VA) or basilar artery (BA) differed greatly depending upon the anatomical variations of thedoi:10.2176/nmc.31.617 pmid:1725808 fatcat:hhgswlkhtrg5ndrzxwlz4tk3ze