Results 21 to 30 of about 14,862 (261)

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

Circle of Willis in adults

open access: yesSaudi Medical Journal, 2001
OBJECTIVE: This study was carried out to describe the main variations of the Circle of Willis and to clarify the clinical importance of these variations, so that practitioners and the students are more alert when dealing with this subject. METHODS: This work is based on the study of 50 Circles of Willis from adult Jordanians who died from diverse ...
S M, Al-Hussain   +2 more
openaire   +3 more sources

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

Segmentation of Circle of Willis from 7T TOF-MRI data and immersive exploration using VR

open access: yesCurrent 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
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

Thomas Willis' legacy on the 400th anniversary of his birth

open access: yesArquivos de Neuro-Psiquiatria, 2022
To celebrate the 400th anniversary of the birth of Thomas Willis, his main contributions to the development of neurosciences, in particular neurology, are presented.
Hélio Afonso Ghizoni Teive   +4 more
doaj   +1 more source

Willis环变异与缺血性卒中相关性的研究进展 Research Progress of the Correlation between Variation in the Circle of Willis and Ischemic Stroke

open access: yesZhongguo cuzhong zazhi
通过尸体解剖和MRA等影像学技术,学者们发现Willis环存在变异,并将其分为不同类型。依托MRA技术,根据Willis环不同动脉段直径大小,可将Willis环分为4种类型。研究发现不同类型的Willis环与缺血性卒中的发病、发生部位及复发有关,然而不同类型的Willis环与缺血性卒中的严重程度及预后的相关性存在一定的争议。本文就Willis环变异与缺血性卒中的相关性进行综述。 Abstract: In the evaluation of autopsy and MRA technology ...
曾潮坤,赵振强 (ZENG Chaokun, ZHAO Zhenqiang)
doaj   +1 more source

Home - About - Disclaimer - Privacy