Results 11 to 20 of about 580,671 (347)

Vestibular effects on cerebral blood flow [PDF]

BMC Neuroscience, 2008
AbstractHumans demonstrate a number of unique adaptations that allow the maintenance of blood pressure and brain blood flow after transition to the upright position. While these adaptations maintain heart-level mean arterial pressure similar to supine values, the brain remains ~30 cm above the heart, resulting in a ~25% decrease in perfusion pressure ...
Jorge M. Serrador, Jorge M. Serrador, Scott J. Wood, F. Owen Black, Todd T. Schlegel   +4 more
openaire   +10 more sources

On the Normalization of Cerebral Blood Flow [PDF]

Journal of Cerebral Blood Flow & Metabolism, 2013
Cerebral blood flow (CBF) is the most common parameter for the quantification of brain's function. Literature data indicate a widespread dispersion of values that might be related to some differences in the measurement conditions that are not properly taken into account in CBF evaluation.
Caroline Fonta, Caroline Fonta, François Estève, François Estève, Franck Plouraboué, Franck Plouraboué, Romain Guibert   +6 more
openaire   +5 more sources

The effect of absent blood flow on the zebrafish cerebral and trunk vasculature

Vascular Biology, 2021
The role of blood flow in vascular development is complex and context-dependent. In this study, we quantify the effect of the lack of blood flow on embryonic vascular development on two vascular beds, namely the cerebral and trunk vasculature in ...
Elisabeth Kugler, Ryan Snodgrass, George Bowley, Karen Plant, Jovana Serbanovic-Canic, Noémie Hamilton, Paul C Evans, Timothy Chico, Paul Armitage   +8 more
doaj   +1 more source

An Analysis of Resting-State Functional Transcranial Doppler Recordings from Middle Cerebral Arteries [PDF]

, 2013
Functional transcrannial Doppler (fTCD) is used for monitoring the hemodynamics characteristics of major cerebral arteries. Its resting-state characteristics are known only when considering the maximal velocity corresponding to the highest Doppler shift (
A Lempel, A Porta, A Porta, AJB Myrden, AS Salinet, AV Alexandrov, B Rey, B Rey, Dmitry Kalika, E Sejdić, E Sejdić, EM Vriens, Ervin Sejdić, Friedemann Paul, H Lohmann, HB Mann, J Krejza, J Lee, M Aboy, M Deppe, M Marinoni, M Matteis, M Moody, N Stroobant, Nicholas Czarnek, OB Paulson, PJ Martin, R Aaslid, RC Oldfield, RE Kelley, S Duschek, S Duschek, S Knake, S Knecht, S Ogawa, TM Markwalder, WH Kruskal   +36 more
core   +10 more sources

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

Brain 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, Simone Degan, Francesca Galeffi, Stephen Schmidt, Angel V. Peterchev   +4 more
doaj   +1 more source

The Effects of Involuntary Respiratory Contractions on Cerebral Blood Flow during Maximal Apnoea in Trained Divers. [PDF]

PLoS ONE, 2013
The effects of involuntary respiratory contractions on the cerebral blood flow response to maximal apnoea is presently unclear. We hypothesised that while respiratory contractions may augment left ventricular stroke volume, cardiac output and ultimately ...
Troy J Cross, Justin J Kavanagh, Toni Breskovic, Petra Zubin Maslov, Mihajlo Lojpur, Bruce D Johnson, Zeljko Dujic   +6 more
doaj   +1 more source

Fractal Rigidity in Migraine [PDF]

, 2003
We study the middle cerebral artery blood flow velocity (MCAfv) in humans using transcranial Doppler ultrasonography (TCD). Scaling properties of time series of the axial flow velocity averaged over a cardiac beat interval may be characterized by two ...
Glaubic-Latka, Marta, Latka, Dariusz, Latka, Miroslaw, West, Bruce J.   +3 more
core   +2 more sources

Cerebral blood flow monitoring

Journal of Neuroanaesthesiology and Critical Care, 2015
Brain is a unique organ of the body that receives highest amount of cardiac output and totally depend on the blood supply for its survival and no reserve of blood flow making it vulnerable for ischaemia. Other important properties of cerebral circulation
Manikandan Sethuraman
doaj   +1 more source

Intraaortic Balloon Pump Counterpulsation and Cerebral Autoregulation: an observational study

BMC Anesthesiology, 2010
Background The use of Intra-aortic counterpulsation is a well established supportive therapy for patients in cardiac failure or after cardiac surgery.
Boots Rob, Barnett Adrian G, Timms Daniel, Dunster Kimble, Geng Shureng, Bellapart Judith, Fraser John F   +6 more
doaj   +1 more source

Modeling of Cerebral Blood Flow Autoregulation Using Mathematical Control Theory

Mathematics, 2022
A mathematical model of cerebral blood flow in the form of a dynamical system is studied. The cerebral blood flow autoregulation modeling problem is treated as a nonlinear control problem and the potential and applicability of the nonlinear control ...
Alexey Golubev, Andrey Kovtanyuk, Renée Lampe   +2 more
doaj   +1 more source