Concept

Hémodynamique

Publications associées (270)

Microfluidic system based on thermoexpandable polymer for on chip blood coagulation testing

Philippe Renaud, Lynda Metref, Raphaël Goetschmann, François Bianchi

This paper describes a simple system for the actuation of a biological fluid through micro-channels with a thermoactivated polymer actuator. This system is of interest for the development of single-use diagnostic test-strips since the actuation of the samp ...

2009

Rheophysics of highly concentrated coarse-particle suspensions in a wide-gap Couette rheometer.

Christophe Ancey, Sébastien Wiederseiner

An optical visualization apparatus has been designed to measure the particle-velocity and solid-concentration profiles of highly concentrated coarse-particle suspensions in a wide-gap Couette rheometer. The main objective is to investigate the frictional-v ...

Amer Inst Physics, 2 Huntington Quadrangle, Ste 1No1 D, Melville, Ny 11747-4501 Usa2009

Scanning laser ophthalmoscope-particle tracking method to assess blood velocity during hypoxia and hyperoxia

Kristen Lorentz

The main objective was to evaluate a Scanning Laser Ophthalmoscope (SLO) based particle tracking method as a means of quantitative assessment of retinal blood velocity and vessel diameter changes in response to hypoxia and hyperoxia. Retinal blood velociti ...

Kluwer2008

Modeling the effects of dispersion and pulsatility of blood flow in pulsed arterial spin labeling

Daniel Gallichan

Arterial spin labeling (ASL) is a method of using MRI to image cerebral perfusion. For the measurement to be calibrated, a model is required describing the kinetics of the flow of the inverted blood from the labeling region to the imaging region. It is com ...

Wiley-Blackwell2008

Using forward calculations of the magnetic field perturbation due to a realistic vascular model to explore the BOLD effect

José Pedro Rebelo Ferreira Marques

This paper assesses the reliability of the infinite cylinder model used previously in the literature to simulate blood oxygenation level dependent (BOLD) signal changes. A three-dimensional finite element method was applied to a realistic model of the cort ...

Wiley-Blackwell2008

On the coupling of 1D and 3D Diffusion-Reaction Equations: Application to Tissue Pefusion Problems

Alfio Quarteroni, Carlo D'Angelo

In this paper we consider the coupling between two diffusion-reaction problems, one taking place in a three-dimensional domain Ω, the other in a one-dimensional subdomain Λ. This coupled problem is the simplest model of fluid flow in a three-dimensional po ...

2008

Modulation of arginase pathway by hemodynamic forces

Fabienne Riche

It is well recognized that alterations on wall shear stress plays an important role on the development of atherosclerosis disease. It is known that oscillatory shear stress (OSS) flow pattern induces endothelial dysfunction via changes on nitric oxide (NO) ...

2008

Full-Field Laser-Doppler Imaging and Its Physiological Significance for Tissue Blood Perfusion

Dimitri Nestor Alice Van De Ville

Using Monte Carlo simulations for a semi-infinite medium representing a skeletal muscle tissue, it is demonstrated that the zero- and first-order moments of the power spectrum for a representative pixel of a full-field laser-Doppler imager behave different ...

IOP2008

Fluid-structure partitioned procedures based on Robin transmission conditions

Fabio Nobile, Christian Vergara

In this article we design new partitioned procedures for fluid-structure interaction problems, based on Robin-type transmission conditions. The choice of the coefficient in the Robin conditions is justified via simplified models. The strategy is effective ...

Elsevier2008

Tomographie en cohérence optique dans le domaine de Fourier appliquée aux tissus humains

Roland Michaely

Fourier Domain Optical Coherence Tomography FDOCT is a recent imaging technique based on the principle of Low Coherence Interferometry. In FDOCT cross-sectional images of diffusing objects are synthesised from a measure of backscattered light. The main adv ...

EPFL2008

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