Results 11 to 20 of about 43,354 (300)

The Effect of Pulsatile and Non-Pulsatile Extra Corporeal Perfusion on Cerebral Oxygen Saturation in Cardiopulmonary Bypass Patients (Flow Type On Cerebral Oxygenatıon) [PDF]

open access: yesNamık Kemal Tıp Dergisi, 2019
Aim:The flow type generated by a heart-lung machine is important in cardiopulmonary bypass. The use of pulsatile flow versus non-pulsatile flow during cardiopulmonary bypass has been a controversy among clinicians. We compared the effect of non-pulsatile
Ayhan ŞAHİN   +5 more
doaj   +1 more source

Pulsatile flow in model cerebral aneurysms [PDF]

open access: yesProcedia Computer Science, 2011
AbstractWe present an immersed boundary method based on volume penalization, with which pulsatile flow in a model cerebral aneurysm is simulated. The model aneurysm consists of a curved vessel merged with a spherical cavity. The dominant vortical structures arising in the time-dependent flow are discussed and the evolution of the maximal shear stress ...
Mikhal, Julia Olegivna   +1 more
openaire   +2 more sources

Characteristics of flow patterns under pulsatile flow with same oscillatory fraction in the grooved channel [PDF]

open access: yes, 2020
The characteristics of flow structure under pulsatile flow with same oscillatory fraction in the grooved channel are investigated experimentally. The flow patterns under pulsatile flow in the grooved channel are divided into 4kinds in this study.
103250   +7 more
core   +1 more source

Effect of intracardiac blood flow pulsatility during radiofrequency cardiac ablation: computer modeling study

open access: yesInternational Journal of Hyperthermia, 2021
Purpose To assess the effect of intracardiac blood flow pulsatility on tissue and blood distributions during radiofrequency (RF) cardiac ablation (RFCA).
Cristina Parés   +2 more
doaj   +1 more source

Development of a Pulsatile Flow-Generating Circulatory Assist Device (K-Beat) for Use with Veno-Arterial Extracorporeal Membrane Oxygenation in a Pig Model Study

open access: yesBiology, 2020
Veno-arterial extracorporeal membrane oxygenation (V-A ECMO) preserves the life of heart failure patients by providing an adequate oxygen supply and blood flow to vital organs.
Yutaka Fujii   +6 more
doaj   +1 more source

Endothelial cell monolayer formation on a small-diameter vascular graft surface under pulsatile flow conditions

open access: yesВестник трансплантологии и искусственных органов, 2021
Objective: to create a cell-populated small-diameter vascular graft (SDVG) using autologous endothelial cells and extracellular matrix proteins, and to evaluate the efficiency of endothelial cell monolayer formation during shear stress preconditioning in
M. Yu. Khanova   +7 more
doaj   +1 more source

Pulsatile Flow Measurement by a Speckle Triangle Assessment

open access: yesFrontiers in Physics, 2021
The blood flow in the coronary artery (CA) is pulsatile and much higher than that measured in the brain, retina, and skin before. Its quantitative measurement is medically significant in the coronary artery bypass grafting (CABG).
Yuan Yuan   +4 more
doaj   +1 more source

LES of additive and non-additive pulsatile flows in a model arterial stenosis [PDF]

open access: yes, 2010
Transition of additive and non-additive pulsatile flows through a simple 3D model of arterial stenosis is investigated by using a large eddy simulation (LES) technique. We find in both the pulsatile cases that the interaction of the two shear layers, one
Molla, M.M., Roditi, G., Paul, M.
core   +1 more source

Convective instability and transient growth in steady and pulsatile stenotic flows [PDF]

open access: yes, 2008
We show that suitable initial disturbances to steady or long-period pulsatile flows in a straight tube with an axisymmetric 75%-occlusion stenosis can produce very large transient energy growths.
D. BARKLEY   +5 more
core   +1 more source

The method to generate pulsatile circulatory fluid flow using microfluidics

open access: yesMethodsX, 2021
Microfluidic chips provide versatile tools to mimic the biological effect of blood flow on pluripotent stem cells (PSC). This paper presents methods for the use of microfluidics to model embryonic circulation using differentiated PSC.
Jingjing Li   +2 more
doaj   +1 more source

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