The vast majority of cerebral stroke cases are caused by transient or permanent occlusion of
a cerebral blood vessel (“ischemic stroke”) eventually leading to brain infarction. The final …

1408 Circulation October 14, 2014 changes from the first to second decade, progressing
with age. 10, 11 Advanced atherosclerotic lesions are almost nonexistent up to the fourth …

Atherosclerosis and intracranial saccular aneurysms predictably localize in areas with
complex arterial geometries such as bifurcations and curvatures. These sites are …

Background: Cerebrovascular diseases such as stroke, aneurysms and arterio-venous
malformations are very much prevalent in our country. Circle of Willis, as an anastomotic …

The circle of Willis is an anastomotic network of arteries surrounding the base of the brain,
providing collateral circulation to prevent ischemia. It has, however, long been established …

Brains were obtained from 1000 medicolegal autopsy subjects of varying ages. The circle of
Wills was examined at the base of the brain. The cerebral vessels were observed with …

The main arteries that supply blood to the brain originate from the Circle of Willis (CoW). The
CoW exhibits considerable anatomical variations which may have clinical importance, but …

Nearly 400 years ago, Thomas Willis described the arterial ring at the base of the brain (the
circle of Willis, CW) and recognized it as a compensatory system in the case of arterial …

Abstract Background Circle of Willis is the main structure that provides constant and regular
blood flow to the brain, protects the brain from ischemia. Stroke has remained the second …

The circle of Willis is a major collateral circulation that has an important role in ischemic
events. The purpose of our study was to investigate the collateral circulation in a Chinese …