Results 1 to 10 of about 28,548 (239)
Cerebrovascular Resistance: The Basis of Cerebrovascular Reactivity [PDF]
Frontiers in Neuroscience, 2018 The cerebral vascular network regulates blood flow distribution by adjusting vessel diameters, and consequently resistance to flow, in response to metabolic demands (neurovascular coupling) and changes in perfusion pressure (autoregulation).
James Duffin +14 more
doaj +3 more sources
Measuring Cerebrovascular Reactivity: Sixteen Avoidable Pitfalls [PDF]
Frontiers in Physiology, 2021 An increase in arterial PCO2 is the most common stressor used to increase cerebral blood flow for assessing cerebral vascular reactivity (CVR). That CO2 is readily obtained, inexpensive, easy to administer, and safe to inhale belies the difficulties in ...
Olivia Sobczyk +11 more
doaj +4 more sources
Impaired Cerebrovascular Reactivity in Huntington’s Disease [PDF]
Frontiers in Physiology, 2021 There is increasing evidence that impairments of cerebrovascular function and/or abnormalities of the cerebral vasculature might contribute to early neuronal cell loss in Huntington’s disease (HD).
Suk Tak Chan +5 more
doaj +3 more sources
Evaluation of cerebrovascular reactivity using transcranial Doppler in patients with influenza. [PDF]
PLoS ONEInfluenza is primarily a respiratory disease but can cause a broad spectrum of complications, including those affecting the cerebrovascular system. The aim of this study was to evaluate cerebrovascular reactivity in patients during and after influenza ...
Ana Orsolic Beslic +4 more
doaj +2 more sources
Abnormal Cerebrovascular Reactivity in Parkinson’s Disease [PDF]
Parkinson's Disease, 2015 We read with great interest the recent original article by Camargo et al. [1] titled “Abnormal Cerebrovascular Reactivity in Patients with Parkinson's Disease.” Authors observed that patients with Parkinson's disease (PD) have impaired cerebrovascular reactivity (CVR) as compared to those without orthostatic hypotension (OH) and to the control subjects.
Kiran Prakash
doaj +3 more sources
Measuring cerebrovascular reactivity in a hemodialysis cohort. [PDF]
Cereb Circ Cogn BehavIntroduction Cerebrovascular reactivity (CVR) can inform about cerebral vascular health and provide prognostic information on risk cerebral ischemic injury. Use of transcranial Doppler ultrasound (TCD) is a non-invasive and inexpensive method to measure CVR and often uses a stimulus of increase in arterial partial pressure of carbon dioxide (pCO2).
Seigworth C, Grassl I, Wolfgram DF.
europepmc +3 more sources
Cerebrovascular reactivity mapping using intermittent breath modulation
NeuroImage, 2020 Cerebrovascular reactivity (CVR), an index of brain vessel’s dilatory capacity, is typically measured using hypercapnic gas inhalation or breath-holding as a vasoactive challenge.
Peiying Liu +8 more
doaj +3 more sources
Incomplete circle of Willis and cerebrovascular reactivity in asymptomatic patients before and after carotid endarterectomy [PDF]
Srpski Arhiv za Celokupno Lekarstvo, 2021 Introduction/Objective. Circle of Willis (CoW) provides the most significant collateral flow in the presence of significant stenosis or occlusion of internal carotid artery.
Manojlović Vladimir +3 more
doaj +1 more source
Neurotrauma Reports, 2021 Age and biological sex are two potential important modifiers of cerebrovascular reactivity post-traumatic brain injury (TBI) requiring close evaluation for potential subgroup responses.
Carleen Batson +6 more
doaj +1 more source
Neurotrauma Reports, 2021 Dear Editor: We read with great interest the recent publication in the journal by Khan and colleagues, from the University of Cambridge, regarding the application of robotic transcranial Doppler (TCD) for continuous and entirely non-invasive ...
Alwyn Gomez, Frederick A. Zeiler
doaj +1 more source