Results 181 to 190 of about 775,260 (336)

A new computational model for quantifying blood flow dynamics across myogenically-active cerebral arterial networks [PDF]

open access: yesarXiv
Cerebral autoregulation plays a key physiological role by limiting blood flow changes in the face of pressure fluctuations. Although the involved cellular processes are mechanically driven, the quantification of haemodynamic forces in in-vivo settings remains extremely difficult and uncertain.
arxiv  

Cerebral Blood Flow in Rats with Renal and Spontaneous Hypertension: Resetting of the Lower Limit of Autoregulation [PDF]

open access: bronze, 1982
David I. Barry   +7 more
openalex   +1 more source

The Relationship between Cerebral Pulsatility Index and Indices of Cerebral Vascular Autoregulation [PDF]

open access: yes
Reduced cerebral vascular function/health is a precursor to various cerebral vascular diseases and neurocognitive conditions including stroke, cognitive decline, and Alzheimer’s disease and related dementias. Cerebral vascular pulsatility index (PI) is a
Brothers, R Matthew   +4 more
core   +1 more source

Investigation of in vivo measurement of cerebral cytochrome-c-oxidase redox changes using near-infrared spectroscopy in patients with orthostatic hypotension [PDF]

open access: yes, 2007
We have previously used a continuous four wavelength near infrared spectrometer to measure changes in the cerebral concentrations of oxy- (Δ[HbO2] and deoxy- haemoglobin (Δ[HHb]) during head-up tilt in patients with primary autonomic failure.
Cooper, C.E.   +6 more
core  

Impaired dynamic cerebral autoregulation in trained breath-hold divers [PDF]

open access: yes, 2019
Breath-hold divers (BHD) experience repeated bouts of severe hypoxia and hypercapnia with large increases in blood pressure. However, the impact of long-term breath-hold diving on cerebrovascular control remains poorly understood. The ability of cerebral
Al-Khazraji, Baraa K.   +9 more
core   +1 more source

Sudden bilateral loss of vision in a 19-year-old man [PDF]

open access: yes, 2015
Introduction: Posterior Reversible Leukoencephalopathy Syndrome (PRES) is caused by ischaemia commonly affecting the posterior cerebral vasculature. It presents with sudden decreased vision, headaches, nausea, vomiting, seizures, and altered mental ...
Cauchi, David   +4 more
core  

49. Experimental Study on Autoregulation of the Cerebral Circulation

open access: bronze, 1967
Keizo KUNITOMI   +5 more
openalex   +2 more sources

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