Results 91 to 100 of about 180,972 (234)

The cortical branches of the middle cerebral artery in the otter (Lutra lutra)

open access: yesVeterinární Medicína, 2012
The cortical branches of the middle cerebral artery in the otter were described using 60 hemispheres. It was demonstrated that the artery is divided into ten permanent branches.
B. Skoczylas   +5 more
doaj   +1 more source

Towards Assistive Diagnoses in m-Health: A Gray-box Neural Model for Cerebral Autoregulation Index [PDF]

open access: yesarXiv, 2020
The cerebral autoregulation system (CAS), is a mechanism which aims to regulate pressure variations occurring in the cerebral circulatory system. At present, there only exist invasive methods and, in turn, they are not used to prevent cerebrovascular accidents.
arxiv  

Increased blood pressure variability upon standing up improves reproducibility of cerebral autoregulation indices [PDF]

open access: yesarXiv, 2017
Dynamic cerebral autoregulation, that is the transient response of cerebral blood flow to changes in arterial blood pressure, is currently assessed using a variety of different time series methods and data collection protocols. In the continuing absence of a gold standard for the study of cerebral autoregulation it is unclear to what extent does the ...
arxiv  

Reinforcement Learning for Safe Autonomous Two Device Navigation of Cerebral Vessels in Mechanical Thrombectomy [PDF]

open access: yesInt J CARS (2025)
Purpose: Autonomous systems in mechanical thrombectomy (MT) hold promise for reducing procedure times, minimizing radiation exposure, and enhancing patient safety. However, current reinforcement learning (RL) methods only reach the carotid arteries, are not generalizable to other patient vasculatures, and do not consider safety.
arxiv   +1 more source

Homocysteine in cerebrovascular disease: An independent risk factor for subcortical vascular encephalopathy [PDF]

open access: yes, 2001
Hyperhomocysteinemia is a risk factor for obstructive large-vessel disease. Here, we studied plasma concentrations of homocysteine and vitamins in patients suffering from subcortical vascular encephalopathy (SVE), a cerebral small-vessel disease leading ...
Aufenanger, Johannes   +10 more
core   +1 more source

Association of tetralogy of Fallot with multiple variations of the cerebral arteries diagnosed by magnetic resonance angiography

open access: yesRadiology Case Reports, 2020
Tetralogy of Fallot very rarely manifests with variations of the cerebral arteries, but we detected an extremely rare combination comprising 3 such variants –bilateral carotid–anterior cerebral arteries anastomoses, the vertebral–anterior inferior ...
Eri Hoshino, MD   +3 more
doaj  

Anomalous origin of a middle cerebral artery from anterior cerebral artery with no association to an accessory or duplicated middle cerebral artery

open access: yesInterdisciplinary Neurosurgery, 2022
The middle cerebral artery (MCA) is one of the major paired intracranial arteries involved in the formation of the circle of Willis. MCA is the most complex of the intracranial arteries mainly because it supplies the cerebral neocortex, which has been ...
S. Matanov   +3 more
doaj  

Egas Moniz: 90 years (1927-2017) from cerebral angiography [PDF]

open access: yes, 2017
In June 2017 we celebrate the 90th anniversary of the pioneer discovery of cerebral angiography, the seminal imaging technique used for visualizing cerebral blood vessels and vascular alterations as well as other intracranial disorders.
Alessandro Frati   +10 more
core   +3 more sources

Lack of effect of pravastatin on cerebral blood flow or parenchymal volume loss in elderly at risk for vascular disease [PDF]

open access: yes, 2005
<p><b>Background and Purpose:</b> Ageing is associated with a decline in cerebral blood flow. Animal studies have shown that cholesterol-lowering therapy with statins might preserve cerebral blood flow (CBF).
Blauw, G.J.   +8 more
core   +1 more source

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