According to the World Health Organization, 15 million people suffer stroke worldwide each year, of these, 5 million die and 5 million are permanently disabled. Stroke is therefore a major cause of ...

Thus, the rate of rupture is directly related to the size of the aneurysm.. Aneurysms usually occur at arterial bifurcations and mostly arise from the anterior circulation of the Circle of Willis (85% ...

This study evaluated anatomical variants in the carotid siphon and of the circle of Willis in patients with aneurysms. We performed a retrospective analysis of cerebral angiographies. The Control ...

The posterior communicating artery (PCOM) is a part of a group of arteries in the brain known as the circle of Willis. The artery connects the internal carotid and the posterior cerebral arteries. Its ...

Binomial logistic regression models adjusting for age, sex and ethnicity were constructed to assess associations between intracranial artery variations and presence of intracranial arterial ...

An incomplete Circle of Willis, defined by aplasia of any arterial segment, was present in 875 (77.7%) patients. The most common variation found was aplasia of the right posterior communicating artery ...

The blood pressure was 85/75 mm. of mercury in the left arm and 120/80 mm. of mercury in the right. There was a localized Grade 2 systolic bruit over the left subclavian artery. There were no ...

ABSTRACT The circle of Willis is an important collateral system that maintains perfusion to the stenotic area from the contralateral carotid and basilar artery to the region of reduced brain perfusion ...

METHODS A random sample of 54 specimens was selected from Nun Study repository of post-mortem intracranial arteries (Circle of Willis). The Nun Study is a longitudinal study of aging and Alzheimer's ...

Artery gene expression of endothelial cells (ECs) in circle of Willis (CoW) arteries (A-D) Confocal live images of Tg (flt4:yfp, kdrl:hras-mcherry) hu4881/s896 and scheme representation of CoW ...