Results 11 to 20 of about 1,957,845 (343)

Vascularization of the Alouatta belzebul brain base [PDF]

open access: yesPesquisa Veterinária Brasileira, 2020
: We studied the arterial circle in the brain of five specimens of the Alouatta belzebul primate. The material had the arterial system perfused (water at 40°C), injected with stained latex (Neoprene 650), fixed in aqueous formaldehyde solution (10%) and ...
Dayane Kelly Sabec-Pereira   +5 more
doaj   +1 more source

Blood pressure gradients in cerebral arteries: a clue to pathogenesis of cerebral small vessel disease

open access: yesStroke and vascular neurology, 2017
Rationale The role of hypertension in cerebral small vessel disease is poorly understood. At the base of the brain (the ‘vascular centrencephalon’), short straight arteries transmit blood pressure directly to small resistance vessels; the cerebral ...
P. Blanco   +3 more
semanticscholar   +1 more source

Posterior arterial circle of Willis anatomic variations and coronary artery dominance: is there a correlation?

open access: yesAutopsy and Case Reports, 2011
Anatomic variations and anomalies in the arteries from the circle of Willis or the heart are common, sometimes even more common than the classic morphology.
David Gonçalves Nordon   +3 more
doaj   +1 more source

Particularities of the imagistic diagnosis of the cervical-cerebral arteries dissection. Flow-splitter dissection [PDF]

open access: yesRomanian Journal of Neurology, 2010
Background: Dissection of the cervical-cerebral arteries is an important cause of stroke in all age groups, specifically in younger population. Dissection of the cervical-cerebral arteries is produced by rupture of the intima and media layers, leading to
G. Boeru, L. Gutiu
doaj   +1 more source

A computational model study of the influence of the anatomy of the circle of willis on cerebral hyperperfusion following carotid artery surgery

open access: yesBioMedical Engineering OnLine, 2011
Background Cerebral hyperperfusion syndrome develops in a small subset of patients following carotid artery surgery (CAS) performed to treat severe carotid artery stenosis.
Liu Hao   +3 more
doaj   +1 more source

Asymmetries of total arterial supply of cerebral hemispheres do not exist

open access: yesHeliyon, 2019
Background: Total blood supply to an organ, or its part, is proportional to its function. The aim of this project was to investigate whether there is a lateralisation of total functions of cerebral hemispheres by determining differences in the arterial ...
Arjun Burlakoti   +3 more
doaj   +1 more source

Expressional changes in cerebrovascular receptors after experimental transient forebrain ischemia.

open access: yesPLoS ONE, 2012
BackgroundGlobal ischemic stroke is one of the most prominent consequences of cardiac arrest, since the diminished blood flow to the brain results in cell damage and sometimes permanently impaired neurological function.
Sara Johansson   +2 more
doaj   +1 more source

Cerebral large artery stenosis and occlusion in POEMS syndrome

open access: yesBMC Neurology, 2021
Background This study aimed to investigate the frequency and risk factors for cerebral artery stenosis and occlusion in patients with polyneuropathy, organomegaly, endocrinopathy, M-protein, and skin changes (POEMS) syndrome.
Atsuhiko Sugiyama   +12 more
doaj   +1 more source

Usefulness of intraoperative Indocyanine green video angiography to select the recipient artery for bypass surgery in arteriosclerotic occlusion of the middle cerebral artery: a technical case report

open access: yesChinese Neurosurgical Journal, 2018
Background In superficial temporal artery-to-middle cerebral artery (STA-MCA) bypass surgery, indocyanine green video angiography (ICG-VA) is usually used to verify bypass patency.
Hiroaki Matsumoto, Yasuhisa Yoshida
doaj   +1 more source

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