Results 31 to 40 of about 1,543,308 (302)

Invasive physiological indices to determine the functional significance of coronary stenosis

open access: yesInternational Journal of Cardiology: Heart & Vasculature, 2018
Physiological measurements are now commonly used to assess coronary lesions in the cardiac catheterisation laboratory, and this practice is evidence-based and supported by clinical guidelines. Fractional flow reserve is currently the gold standard method
Firas R. AL-Obaidi   +2 more
doaj   +1 more source

Perspectives of the extra corporeal membrane oxygenation – Key insights from mathematical analysis

open access: yesBiomedical Engineering Advances, 2022
Extracorporeal membrane oxygenator is a life-saving critical medical equipment for cardio-pulmonary support, for treatment of severe chronic respiratory distress.
Sourav Mondal, Addada Hemanth Kumar
doaj   +1 more source

Deactivation in the rabbit left ventricle induced by constant ejection flow [PDF]

open access: yes, 1989
A study of pressure generated by the left ventricle after ejection with constant flow for different values of the ejection flow, flow duration, time of flow arrest, and ventricular volume is discussed.
Boom, Herman B.K., Wijkstra, Hessel
core   +2 more sources

Multiparametric flow cytometry and cell sorting for the assessment of viable, injured, and dead bifidobacterium cells during bile salt stress [PDF]

open access: yes, 2002
Using a flow cytometry-based approach, we assessed the viability of Bifidobacterium lactis DSM 10140 and Bifidobacterium adolescentis DSM 20083 during exposure to bile salt stress.
Amor, K., Ben   +6 more
core   +2 more sources

Computational fluid dynamics model to predict the dynamical behavior of the cerebrospinal fluid through implementation of physiological boundary conditions

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Cerebrospinal fluid (CSF) dynamics play an important role in maintaining a stable central nervous system environment and are influenced by different physiological processes.
Sarah Vandenbulcke   +4 more
doaj   +1 more source

Outflow boundary conditions for 3D simulations of non-periodic blood flow and pressure fields in deformable arteries [PDF]

open access: yes, 2010
The simulation of blood flow and pressure in arteries requires outflow boundary conditions that incorporate models of downstream domains. We previously described a coupled multidomain method to couple analytical models of the downstream domains with 3D ...
Figueroa, C. A.   +3 more
core   +5 more sources

Large-eddy simulation of physiological pulsatile flow through a channel with double constriction [PDF]

open access: yes, 2016
Pulsatile flow in a 3D model of arterial double stenoses is investigated using a large eddy simulation (LES) technique. The computational domain that has been chosen is a simple channel with a biological-type stenosis formed eccentrically on the top wall.
Molla, Md. Mamun, Paul, Manosh C.
core   +2 more sources

Acute short-term mental stress does not influence salivary flow rate dynamics. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND: Results of studies that address the influence of stress on salivary flow rate and composition are controversial. The aim of this study was to reveal the influence of stress vulnerability and different phases of stress reactivity on the ...
Ella A Naumova   +6 more
doaj   +1 more source

Physiological confounders of renal blood flow measurement

open access: yesMagnetic Resonance Materials in Physics, Biology and Medicine, 2023
Abstract Objectives Renal blood flow (RBF) is controlled by a number of physiological factors that can contribute to the variability of its measurement. The purpose of this review is to assess the changes in RBF in response to a wide range of physiological confounders and derive practical recommendations on patient ...
Alhummiany, B.   +4 more
openaire   +3 more sources

Physiology-Based Revascularization

open access: yesJACC: Asia, 2021
Coronary physiological assessment using fractional flow reserve or nonhyperemic pressure ratios has become a standard of care for patients with coronary atherosclerotic disease.
Joo Myung Lee, MD, MPH, PhD   +11 more
doaj   +1 more source

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