Results 41 to 50 of about 17,450 (200)

Research and Medical Transcranial Doppler System

open access: yesArchives of Acoustics, 2016
A new ultrasound digital transcranial Doppler system (digiTDS) is introduced. The digiTDS enables diagnosis of intracranial vessels which are rather difficult to penetrate for standard systems.
Marcin LEWANDOWSKI   +4 more
doaj   +1 more source

Uncovering the impact of the cardiovascular system on cerebrovascular health using MRI

open access: yesExperimental Physiology, EarlyView.
Abstract Human cerebrovasculature is finely tuned to enable local changes in blood flow to meet the brain's demands, whilst protecting the brain from systemic changes in blood pressure, both acutely during a heartbeat and chronically over time. This review summarises cerebrovascular structure and function, their role in disease and neurodegeneration ...
Ian D. Driver, Kevin Murphy
wiley   +1 more source

Individuals with persisting post‐concussion symptoms with physiological subtype demonstrate altered cardiovascular and autonomic responses to face cooling

open access: yesExperimental Physiology, EarlyView.
Abstract Individuals with persisting post‐concussion symptoms with physiological subtype (PPCS‐P) demonstrate exercise intolerance due to exacerbation of concussion‐like symptoms during incremental exercise. We tested the hypothesis that individuals with PPCS‐P (n = 12) would have a blunted cardiac autonomic response to face cooling compared to healthy
Phillip J. Wallace   +6 more
wiley   +1 more source

Genetic, laboratory and clinical risk factors in the development of overt ischemic stroke in children with sickle cell disease

open access: yesHematology, Transfusion and Cell Therapy, 2018
Cerebrovascular disease, particularly stroke, is one of the most severe clinical complications associated with sickle cell disease and is a significant cause of morbidity in both children and adults.
André Rolim Belisário   +3 more
doaj   +1 more source

Optimizing cerebrovascular endothelial health through shear stress modulation

open access: yesExperimental Physiology, EarlyView.
Abstract The endothelium plays a pivotal role in regulating cerebrovascular blood flow, and its dysfunction increases the risk of cerebrovascular disease. Endothelial shear stress, a primary mechanical stimulus for endothelial nitric oxide production, is a key modulator of vascular adaptation.
Erika Iwamoto   +2 more
wiley   +1 more source

PATTERN OF CEREBRAL BLOOD FLOW VELOCITY USING TRANSCRANIAL DOPPLER ULTRASONOGRAPHY IN CHILDREN WITH SICKLE CELL DISORDER IN LAGOS STATE, NIGERIA

open access: yesMediterranean Journal of Hematology and Infectious Diseases, 2017
Cerebrovascular accident (CVA) is a common devastating neurological complication of sickle cell disorder (SCD) with a high recurrent and mortality rate.
Motunrayo Oluwabukola Adekunle
doaj   +1 more source

Linking dynamic cerebral autoregulation and inhibitory executive function: Role of modifiable behaviours

open access: yesExperimental Physiology, EarlyView.
Abstract Dynamic cerebral autoregulation (dCA) stabilises cerebral blood flow (CBF) against rapid fluctuations in perfusion pressure and may serve as a key physiological mediator of cognitive function. Inhibitory executive function, a core domain essential for goal‐directed behaviour, is influenced by modifiable lifestyle factors such as physical ...
Hayato Tsukamoto, Damian M. Bailey
wiley   +1 more source

Time‐course analysis of cerebral circulation and cardiorespiratory responses to acute central blood volume reduction in healthy young males

open access: yesExperimental Physiology, EarlyView.
Abstract Central blood volume (CBV) reduction challenges circulatory and respiratory homeostasis, particularly during the initial compensatory phase (0–2 min), when rapid physiological adaptations occur. In this study, we examined dynamic cardiorespiratory responses to CBV reduction using lower‐body negative pressure (LBNP) in 11 healthy young males ...
Marina Feeley   +7 more
wiley   +1 more source

Transcranial Doppler Ultrasonography: Diagnosis dan Monitoring Non Invasif pada Neuroanesthesia dan Neurointesive Care

open access: yesJurnal Neuroanestesi Indonesia, 2018
Transcranial Doppler (TCD) adalah pemeriksaan ultrasonografi yang telah digunakan secara luas dibidang neuroanestesi dan perawatan intensif. Pada bidang perawatan intensif neurologi, pemeriksaan TCD sangat berguna untuk evaluasi dan monitoring perubahan ...
Buyung Hartiyo Laksono
doaj   +1 more source

Hemodynamic changes of severe carotid atheromatosis pre and post endarterectomy in the case of a coronary patient with ischemic stroke [PDF]

open access: yesRomanian Journal of Neurology, 2013
Nearly 25%-30% of ischemic strokes are due to atherosclerosis of the carotid bifurcation. Cerebrovascular reactivity (CVR) is an indicator for testing hemodynamic status of cerebral circulation.
Marius Militaru   +5 more
doaj   +1 more source

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