Results 1 to 10 of about 137,738 (292)
Segmentation of Circle of Willis from 7T TOF-MRI data and immersive exploration using VR
Current Directions in Biomedical Engineering, 2022 7T TOF MRI scans provide high resolution images of intracranial vasculature. When segmented, the Circle of Willis is detailed and thus opens up new possibilities, in research but also in education.
Spitz Lena +5 more
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Evidence and Mechanisms for Embolic Stroke in Contralateral Hemispheres From Carotid Artery Sources
Journal 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
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Hyperhomocysteinemia induced by excessive methionine intake promotes rupture of cerebral aneurysms in ovariectomized rats. [PDF]
, 2016 BackgroundHyperhomocysteinemia (HHcy) is associated with inflammation and a rise in the expression of matrix metalloproteinase-9 (MMP-9) in the vascular wall.
Hashimoto, Tomoki +9 more
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Isolated left vertebral artery and its consequences for aortic arch repair
Journal 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
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Animals, 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
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Journal 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
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Angiography Analysis of Variations of the Posterior Segment of the Circle of Willis
Biomolecules & 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
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A complex abnormality of the circle of Willis. Case presentation [PDF]
Romanian 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
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National 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
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Adaptation of the Cerebrocortical Circulation to Carotid Artery Occlusion Involves Blood Flow Redistribution between Cortical Regions and is Independent of eNOS [PDF]
, 2016 Cerebral circulation is secured by feed-forward and feed-back control pathways to maintain and eventually reestablish the optimal oxygen and nutrient supply of neurons in case of disturbances of the cardiovascular system.
Andreas Polycarpou +11 more
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