Results 51 to 60 of about 1,133,311 (255)

Pulsatile microvascular blood flow imaging by short-time Fourier transform analysis of ultrafast laser holographic interferometry [PDF]

open access: yes, 2015
We report on wide-field imaging of pulsatile microvascular blood flow in the exposed cerebral cortex of a mouse by holographic interferometry. We recorded interferograms of laser light backscattered by the tissue, beating against an off-axis reference ...
Atlan, M.   +7 more
core   +5 more sources

Quantitative analysis of systemic perfusion and cerebral blood flow in the modeling of aging and orthostatic hypotension

open access: yesFrontiers in Physiology
Introduction: Orthostatic hypotension (OH) is common among the older population. The mechanism hypothesized by OH as a risk factor for cognitive decline and dementia is repeated transient cerebral blood flow deficiency.
Heming Cheng   +7 more
doaj   +1 more source

Scaling of brain metabolism and blood flow in relation to capillary and neural scaling [PDF]

open access: yesPLoS ONE 6(10): e26709 (2011), 2011
Brain is one of the most energy demanding organs in mammals, and its total metabolic rate scales with brain volume raised to a power of around 5/6. This value is significantly higher than the more common exponent 3/4 relating whole body resting metabolism with body mass and several other physiological variables in animals and plants.
arxiv   +1 more source

Cerebral blood flow autoregulation is impaired in schizophrenia [PDF]

open access: yes, 2017
Patients with schizophrenia have a higher risk of cardiovascular diseases and higher mortality from them than does the general population; however, the underlying mechanism remains unclear.
al, et, Ku, Hsiao-Lun, Lane, Timothy
core  

Effects of the exercise in the cerebral blood flow and metabolism. A review [PDF]

open access: yes, 2015
In recent years it has been shown that cerebral blood flow is affected by intense exercise, what may even lead to a reduction in the cognitive capacity.
Llana Belloch, Salvador   +3 more
core   +1 more source

Postishemic Cerebral Function and Blood Flow

open access: yesОбщая реаниматология, 2005
The impact of massive blood loss on cerebral blood flow-function relationships was studied in rats in the postis-chemic period. Anxiety was examined in the raised cross-shaped labyrinth.
V. V. Aleksandrin   +3 more
doaj   +1 more source

EFFECT OF LEFT VENTRICULAR SYSTOLIC DYSFUNCTION ON CEREBRAL HEMODYNAMICS IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION (THE RESULTS OF OBSERVATIONAL STUDIES)

open access: yesРациональная фармакотерапия в кардиологии, 2015
Aim. To study the effect of left ventricular (LV) systolic dysfunction on cerebral hemodynamic in patients with ST segment elevation myocardial infarction (STEMI) during acute period. Material and methods.
V. E. Kulikov   +4 more
doaj   +3 more sources

Rapid, Dose-Dependent Enhancement of Cerebral Blood Flow by transcranial AC Stimulation in Mouse

open access: yesBrain Stimulation, 2021
Background: Transcranial electrical stimulation at an appropriate dose may demonstrate intracranial effects, including neuronal stimulation and cerebral blood flow responses.
Dennis A. Turner   +4 more
doaj  

Real-Time Phase Contrast MRI to quantify Cerebral arterial flow change during variations breathing [PDF]

open access: yesarXiv, 2022
Cerebral arterial blood flow (CABF) can be investigated in few seconds without any synchronization by Real-Time phase contrast. Significant changes in CABF were found between expiration and inspiration during normal breathing of healthy volunteers. Synopsis (100/100) Real-time phase contrast MRI has been applied to investigate cerebral arterial blood ...
arxiv  

Statistical physics of cerebral embolization leading to stroke [PDF]

open access: yesPhys. Rev. E vol. 80, 051912 (2009), 2008
We discuss the physics of embolic stroke using a minimal model of emboli moving through the cerebral arteries. Our model of the blood flow network consists of a bifurcating tree, into which we introduce particles (emboli) that halt flow on reaching a node of similar size.
arxiv   +1 more source

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