Association between circle of Willis and ischemic stroke: a systematic review and meta-analysis

M Oumer, M Alemayehu, A Muche - BMC neuroscience, 2021 - Springer
Abstract Background Circle of Willis is the main structure that provides constant and regular
blood flow to the brain, protects the brain from ischemia. Stroke has remained the second …

Cerebral blood flow, cerebrovascular reactivity and their influence on ventilatory sensitivity

JMJR Carr, HG Caldwell, PN Ainslie - Experimental physiology, 2021 - Wiley Online Library
New Findings What is the topic of this review? Cerebrovascular reactivity to CO2, which is a
principal factor in determining ventilatory responses to CO2 through the role reactivity plays …

Cerebral oxygen extraction fraction (OEF): Comparison of challenge-free gradient echo QSM+qBOLD (QQ) with 15O PET in healthy adults

J Cho, J Lee, H An, MS Goyal, Y Su… - Journal of Cerebral …, 2021 - journals.sagepub.com
We aimed to validate oxygen extraction fraction (OEF) estimations by quantitative
susceptibility mapping plus quantitative blood oxygen-level dependence (QSM+ qBOLD, or …

[HTML][HTML] Cerebrovascular reactivity measurements using simultaneous 15O-water PET and ASL MRI: Impacts of arterial transit time, labeling efficiency, and hematocrit

MY Zhao, AP Fan, DYT Chen, MJ Sokolska, J Guo… - Neuroimage, 2021 - Elsevier
Cerebrovascular reactivity (CVR) reflects the capacity of the brain to meet changing
physiological demands and can predict the risk of cerebrovascular diseases. CVR can be …

Cerebrovascular reactivity: purpose, optimizing methods, and limitations to interpretation–a personal 20-year odyssey of (re) searching

JA Fisher, DJ Mikulis - Frontiers in Physiology, 2021 - frontiersin.org
The brain is a neurovascular organ. A stimulus-response approach is effective in
interrogating the physiology of its vasculature. Ideally, the stimulus is standardized across …

Cerebral vasoreactivity evaluated by transcranial color Doppler and breath-holding test in patients after SARS-CoV-2 infection

M Marcic, L Marcic, B Marcic, V Capkun… - Journal of personalized …, 2021 - mdpi.com
From the beginning of the SARS-CoV-2 virus pandemic, it was clear that the virus is highly
neurotrophic. Neurological manifestations can range from nonspecific symptoms such as …

Improving ischemic stroke care with MRI and deep learning artificial intelligence

Y Yu, JJ Heit, G Zaharchuk - Topics in Magnetic Resonance …, 2021 - journals.lww.com
Advanced magnetic resonance imaging has been used as selection criteria for both acute
ischemic stroke treatment and secondary prevention. The use of artificial intelligence, and in …

Infarct volume and outcome of cerebral ischaemia, a systematic review and meta‐analysis

X Meng, J Ji - International Journal of Clinical Practice, 2021 - Wiley Online Library
Background Multiple studies have evaluated the accuracy of infarct volume (IV) as a
predictor of outcome in patients with ischaemic stroke; however, no study has systematically …

Temporal clustering, tissue composition, and total variation for mapping oxygen extraction fraction using QSM and quantitative BOLD

J Cho, P Spincemaille, TD Nguyen… - Magnetic resonance …, 2021 - Wiley Online Library
Purpose To improve the accuracy of quantitative susceptibility mapping plus quantitative
blood oxygen level‐dependent magnitude (QSM+ qBOLD or QQ) based mapping of oxygen …

Middle cerebral artery pressure laterality in patients with symptomatic ICA stenosis

M Holmgren, KH Støverud, L Zarrinkoob, A Wåhlin… - PLoS …, 2021 - journals.plos.org
An internal carotid artery (ICA) stenosis can potentially decrease the perfusion pressure to
the brain. In this study, computational fluid dynamics (CFD) was used to study if there was a …