Results 31 to 40 of about 15,867 (304)

Evidence and Mechanisms for Embolic Stroke in Contralateral Hemispheres From Carotid Artery Sources

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023
Background Disambiguation of embolus pathogenesis in embolic strokes is often a clinical challenge. One common source of embolic stroke is the carotid arteries, with emboli originating due to plaque buildup or perioperatively during revascularization ...
Ricardo Roopnarinesingh   +2 more
doaj   +1 more source

Isolated left vertebral artery and its consequences for aortic arch repair

open access: yesJournal of Vascular Surgery Cases and Innovative Techniques, 2019
A left vertebral artery (LVA) originating directly from the aortic arch is the second most common supra-aortic branching anomaly. This isolated LVA can also terminate in the posterior inferior cerebellar artery without contributing to the circle of ...
Emma van der Weijde, MD   +3 more
doaj   +1 more source

Arterial Blood Supply to the Cerebral Arterial Circle in the Selected Species of Carnivora Order from Poland

open access: yesAnimals, 2023
Carnivores are a wide, diverse group of mammals whose representatives live all over the world. The study presents the results of the analysis of the arterial vascularization of the blood supply to the cerebral arterial circle of selected species in the ...
Maciej Zdun   +3 more
doaj   +1 more source

Anatomical Variations in Circle of Willis in Patients Undergoing CT Cerebral Angiography in a Tertiary Hospital in Nepal: A Descriptive Cross-sectional Study

open access: yesJournal of Nepal Medical Association, 2020
Introduction: Variation in Circle of Willis is a commonly encountered entity in patients undergoing computed tomography angiography, identification of which is crucial in the management of patients with vascular pathologies.
Prajwal Dhakal   +5 more
doaj   +1 more source

Angiography Analysis of Variations of the Posterior Segment of the Circle of Willis

open access: yesBiomolecules & Biomedicine, 2005
Cerebral-vascular diseases present one of the leading problems of the modern mankind. They are followed by the risk of high mortality rate, and as such cause high level of disability with people who survive cerebral-vascular incident (stroke, apoplexy).
Alma Voljevica   +3 more
doaj   +1 more source

An unusual variation in the anterior communicating artery of the circle of Willis in the human brain - a case report

open access: yesNational Journal of Clinical Anatomy, 2016
This report highlights an unusual variation of Anterior communicating artery of the circle of Willis found during dissection for studying circle of Willis.
Farheen A Karim, J D Sarma, K L Talukdar
doaj   +1 more source

A complex abnormality of the circle of Willis. Case presentation [PDF]

open access: yesRomanian Journal of Neurology, 2012
Objective. We report a case of a patient with medium ACI stenosis and border zone infarct that occurred under normal hemodynamic conditions (normal BP, sinus rhythm), as normal supply mechanisms through the circle of Willis were absent.
Monica Sabau   +2 more
doaj   +1 more source

Dr. Thomas Willis and his ‘Circle’ in the Brain

open access: yesNepal Journal of Neuroscience, 2005
With the advances in microneurosurgery and the ability to tackle diseases of the intracranial arteries at the base of the brain (often referred to as the Circle of Willis) surgically more effectively, accurate knowledge of the intracranial vascular ...
PVS Rana
doaj   +1 more source

Association between symptomatic intracranial atherosclerotic disease and the integrity of the circle of Willis [PDF]

open access: yesJournal of Integrative Neuroscience, 2022
The relationship between the severity of intracranial atherosclerotic disease and the circle of Willis integrity is unclear. In this brief report, we investigate the associations between symptomatic intracranial atherosclerotic disease and the ...
Yilan Xu   +4 more
doaj   +1 more source

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