Results 21 to 30 of about 1,347,814 (421)

Effect of blood's velocity on blood resistivity [PDF]

, 1998
Blood resistivity is an important quantity whose value influences the results of various methods used in the study of heart and circulation. In this paper, the relationship between blood resistivity and velocity of blood flow was evaluated and analyzed ...
Ng, SL, Tjin, SC, Xie, T, Yang, QP
core   +1 more source

Investigation of spiral blood flow in a model of arterial stenosis [PDF]

, 2009
The spiral component of blood flow has both beneficial and detrimental effects in human circulatory system [Stonebridge PA, Brophy CM. Spiral laminar flow in arteries? Lancet 1991; 338: 1360–1].
Ahmed, Arkaitz Larman, Friedman, Fry, Frydrychowicz, Ghalichi, Ku, Ku, Lee, Manosh C. Paul, Patankar, Paul, Sarifuddin, Stonebridge, Stonebridge, Stonebridge, Wilcox   +16 more
core   +1 more source

PEMODELAN MATEMATIKA ALIRAN DARAH PADA PEMBULUH DARAH ARTERI DAN VENA PADA KELAINAN JANTUNG SINGLE VENTRICLE [PDF]

, 2020
Single ventricle is a heart defect in which one of the ventricle does not developed and bother the  blood flow. One of the solutions is fontan surgery.  The result of Fontan surgery allows the blood flowing in veins that initially lead to the ...
Pradina, Mutia Aris
core   +2 more sources

Novel application of a force sensor during sit‐to‐stands to measure dynamic cerebral autoregulation onset

Physiological Reports, 2022
Current sit‐to‐stand methods measuring dynamic cerebral autoregulation (dCA) do not capture the precise onset of the time delay (TD) response. Reduced sit‐to‐stand reactions in older adults and individuals post‐stroke could inadvertently introduce ...
Alicen A. Whitaker, Eric D. Vidoni, Stacey E. Aaron, Adam G. Rouse, Sandra A. Billinger   +4 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

Quantitative blood flow velocity imaging using laser speckle flowmetry

Scientific Reports, 2016
Laser speckle flowmetry suffers from a debated quantification of the inverse relation between decorrelation time (τc) and blood flow velocity (V), i.e. 1/τc = αV.
A. Nadort, Koen Kalkman, T. V. van Leeuwen, D. Faber   +3 more
semanticscholar   +1 more source

Using 320-slice perfusion computed tomography in visuali zation of prostate cancer

Учёные записки Санкт-Петербургского государственного медицинского университета им. Акад. И.П. Павлова, 2016
Visualization of prostate cancer remains an actual problem in urology and oncology. Purpose of the study – evaluation of prostate cancer visualization using 320-slice perfusion computed tomography (PCT). PCT results of 15 patients with suspected prostate
N. V. Sosnowski, E. V. Rozengauz, M. I. Shkolnik, D. V. Nesterov, A. A. Arzumanov   +4 more
doaj   +1 more source

Cerebral blood flow velocity is associated with endothelial function in men [PDF]

Journal of Men's Health, 2021
Background and objective: Reduction in cerebral blood flow with aging leads to cognitive decline and brain atrophy. Cerebrovascular hemodynamics are associated with vascular function.
Nobuhiko Akazawa, Hiroshi Kumagai, Toru Yoshikawa, Kanae Myoenzono, Koichiro Tanahashi, Seiji Maeda   +5 more
doaj   +1 more source

Large-Eddy simulation of pulsatile blood flow [PDF]

, 2009
Large-Eddy simulation (LES) is performed to study pulsatile blood flow through a 3D model of arterial stenosis. The model is chosen as a simple channel with a biological type stenosis formed on the top wall.
Despande, Fry, Frydrychowicz, Fung, Ghalichi, Giles Roditi, Jones, Lee, Liang, Lieber, Malek, Manosh C. Paul, Md. Mamun Molla, Mittal, Mittal, Pedley, Pedley, Piomelli, Scotti, Smagorinsky, Stonebridge, Sutera, Younis   +22 more
core   +1 more source

Vessel Sampling and Blood Flow Velocity Distribution With Vessel Diameter for Characterizing the Human Bulbar Conjunctival Microvasculature

Eye & contact lens, 2016
Purpose: This study determined (1) how many vessels (i.e., the vessel sampling) are needed to reliably characterize the bulbar conjunctival microvasculature and (2) if characteristic information can be obtained from the distribution histogram of the ...
Liang Wang, Jin Yuan, Hong Jiang, Wentao Yan, H. Cintrón-Colón, V. Perez, D. DeBuc, W. Feuer, Jianhua Wang   +8 more
semanticscholar   +1 more source