Results 1 to 10 of about 137,386 (200)

Pulsatility analysis of the circle of Willis [PDF]

open access: yesAging Brain
Purpose: To evaluate the phenomenological significance of cerebral blood pulsatility imaging in aging research. Methods: N = 38 subjects from 20 to 72 years of age (24 females) were imaged with ultrafast MRI with a sampling rate of 100 ms and ...
Henning U. Voss, Qolamreza R. Razlighi
doaj   +4 more sources

Circle of Willis Configuration and Thrombus Localization Impact on Ischemic Stroke Patient Outcomes: A Systematic Review [PDF]

open access: yesMedicina, 2023
Background and Objectives: The published literature highlights the fact that the integrity of the Circle of Willis has a direct impact on stroke outcome, especially in cases of distal internal carotid T occlusion.
Audrius Širvinskas   +4 more
doaj   +2 more sources

Interaction between vertebral artery hypoplasia and circle of Willis variants in posterior circulation stroke and TIA [PDF]

open access: yesFrontiers in Neurology
BackgroundThe clinical relevance of posterior Circle of Willis (CoW) variants remains controversial, particularly in the presence of vertebral artery hypoplasia (VAH).
Virginija Gaigalaite   +4 more
doaj   +2 more sources

Quantitative evaluation of normal cerebrospinal fluid flow in Sylvian aqueduct and perivascular spaces of middle cerebral artery and circle of Willis using 2D phase-contrast MRI imaging [PDF]

open access: yesFrontiers in Neuroscience
IntroductionRecently, it was proposed that CSF flow comprises a critical part of the glymphatic system, playing a role in various brain abnormalities from Alzheimer’s disease to hydrocephalus.
Rosemarie Faustina D. Le   +4 more
doaj   +2 more sources

Prevalence and Patterns of Circle of Willis Variants in Civil Service Hospital: A Retrospective Cross-Sectional Study Using 3 Tesla Magnetic Resonance Angiography [PDF]

open access: yesJournal of Nepal Medical Association
Introduction: The Circle of Willis (CoW) is a crucial cerebral arterial network, and its anatomical variations may influence cerebrovascular health.
Subash Thapa   +3 more
doaj   +2 more sources

Circle of Willis Variants: Fetal PCA [PDF]

open access: yesStroke Research and Treatment, 2013
We sought to determine the prevalence of fetal posterior cerebral artery (fPCA) and if fPCA was associated with specific stroke etiology and vessel territory affected.
Amir Shaban   +3 more
doaj   +3 more sources

Prognostic analysis of endovascular mechanical thrombectomy in stroke patients with acute internal carotid artery obstruction based on circle of Willis variation [PDF]

open access: yesFrontiers in Neurology
ObjectiveEndovascular mechanical thrombectomy (EVMT) is widely employed in patients with acute intracranial carotid artery occlusion (AIICAO). This study aimed to predict the outcomes of EVMT following AIICAO by utilizing anatomic classification of the ...
Tianlun Qiu, Huagang Luo, Wuqiao Bao
doaj   +2 more sources

Migraine with aura is associated with an incomplete circle of willis: results of a prospective observational study. [PDF]

open access: yesPLoS ONE, 2013
To compare the prevalence of an incomplete circle of Willis in patients with migraine with aura, migraine without aura, and control subjects, and correlate circle of Willis variations with alterations in cerebral perfusion.Migraine with aura, migraine ...
Brett Cucchiara   +7 more
doaj   +1 more source

Heritability of circle of Willis variations in families with intracranial aneurysms. [PDF]

open access: yesPLoS ONE, 2018
Intracranial aneurysms more often occur in the same arterial territory within families. Several aneurysm locations are associated with specific circle of Willis variations.
Mayte Sánchez van Kammen   +9 more
doaj   +1 more source

Distribution of variations in anatomy of the circle of Willis: results of a cadaveric study of the Malawian population and review of literature

open access: yesThe Pan African Medical Journal, 2021
INTRODUCTION: The circle of Willis is an anatomical structure of clinical importance particularly in the evaluation of neurovascular diseases. Individuals show considerable variations in the anatomical configuration of the circle of Willis.
Charles Nyasa   +4 more
doaj   +1 more source

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