Concept

Hémodynamique

Publications associées (270)

Left ventricular hypertrophy induced by reduced aortic compliance

It was the aim of this study to investigate the long- term effects of reduced aortic compliance on cardiovascular hemodynamics and cardiac remodeling. ...

2009

Influence of inlet boundary conditions on the local haemodynamics of intracranial aneurysms

Nikolaos Stergiopoulos, Philippe Reymond

Haemodynamics is believed to play an important role in the initiation, growth and rupture of intracranial aneurysms. In this context, computational haemodynamics has been extensively used in an effort to establish correlations between flow variables and cl ...

2009

RC time constant of single lung equals that of both lungs together: a study in chronic thromboembolic pulmonary hypertension

Nikolaos Stergiopoulos, Nico Westerhof

The product of resistance, R, and compliance, C (RC time), of the entire pulmonary circulation is constant. It is unknown if this constancy holds for individual lungs. We determined R and C in individual lungs in chronic thromboembolic pulmonary hypertensi ...

2009

Congenital heart disease affects local gyrification in 22q11.2 deletion syndrome

Jean-Philippe Thiran, Meritxell Bach Cuadra, Marie Schaer

22q11.2 deletion syndrome (22q11.2DS) is a common genetic condition associated with cognitive and learning impairments. In this study, we applied a threedimensional method for quantifying gyrification at thousands of points over the cortical surface to ima ...

Wiley-Blackwell2009

Algorithms for fluid-structure interaction problems arising in hemodynamics

Annalisa Quaini

We discuss in this thesis the numerical approximation of fluid-structure interaction (FSI) problems with a particular concern (albeit not exclusive) on hemodynamics applications. Firstly, we model the blood as an incompressible fluid and the artery wall as ...

EPFL2009

Laser Doppler imaging for intraoperative human brain mapping

Michaël Unser, Dimitri Nestor Alice Van De Ville, Theo Lasser, Marcel Leutenegger, Rainer Leitgeb, Erica Martin-Williams

The identification and accurate location of centers of brain activity are vital both in neuro-surgery and brain research. This study aimed to provide a non-invasive, non-contact, accurate, rapid and user-friendly means of producing functional images intrao ...

Elsevier2009

Intercellular calcium dynamics in smooth muscle cells

Dominique Seppey

Muscular arteries are able to actively modify their diameter by modulating the tone of the smooth muscle cells located within the arterial wall. A small variation of lumen diameter has a large influence on blood flow as well as on arterial pressure. The ca ...

EPFL2009

Coupling Biot and Navier-Stokes equations for modelling fluid-poroelastic media interaction

Alfio Quarteroni, Annalisa Quaini

The interaction between a fluid and a poroelastic structure is a complex problem that couples the Navier-Stokes equations with the Biot system. The finite element approximation of this problem is involved due to the fact that both subproblems are indefinit ...

Elsevier2009

Nanostructured ceramic coating for deformable medical implants such as stents

Arnaud Tourvieille de Labrouhe

Coronary artery disease is one of the main causes of death in western countries. The standard of care has become the implantation of a coronary stent, i.e. a small metal-mesh tube reopening the lumen of the artery and maintaining the blood flow to the hear ...

EPFL2009

Methodologies to assess blood flow in cerebral aneurysms: Current state of research and perspectives

Nikolaos Stergiopoulos, Mohamed Farhat, Philippe Reymond, Luca Augsburger, Edouard Fonck

With intracranial aneurysms disease bringing a weakened arterial wall segment to initiate, grow and potentially rupture an aneurysm, current understanding of vessel wall biology perceives the disease to follow the path of a dynamic evolution and increasing ...

2009

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