Results 11 to 20 of about 15,867 (304)

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

Analysis of the symmetric configuration of the circle of Willis in a series of autopsied corpses [PDF]

open access: goldVojnosanitetski Pregled, 2015
Introduction. The forming of the blood vessels network configuration at the base of the brain and interconnecting of blood vessels during the embryogenesis is directly related to the phylogenetic development of the brain and brain structures.
Stojanović Nebojša   +6 more
doaj   +3 more sources

RNF213 p.R4810K (c.14429G > A) Variant Determines Anatomical Variations of the Circle of Willis in Cerebrovascular Disease [PDF]

open access: goldFrontiers in Aging Neuroscience, 2021
IntroductionDysregulation of the RING finger protein 213 (RNF213) gene impairs vascular formation in experimental animal models. In addition, vascular abnormalities in the circle of Willis are associated with cerebrovascular disease.
Futoshi Eto   +20 more
doaj   +2 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

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

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

Circle of Willis variation in a complex stroke presentation: a case report [PDF]

open access: goldBMC Neurology, 2006
Background The impact of circle of Willis anatomical variation upon the presentation of stroke is probably underrecognised. Case presentation A 63-year-old right-handed woman developed a left hemiparesis and right leg weakness sequentially following a ...
Young Carolyn A   +2 more
doaj   +2 more sources

Dissecting the Circle of Willis-Migraine connection: A review. [PDF]

open access: goldAIMS Neurosci
El Choueiri J   +3 more
europepmc   +2 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

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