Concept

Vaisseau sanguin

Publications associées (133)

Arterial remodeling using a constituent-based approach

This thesis is intended to contribute to the field of biomechanics of growth and remodeling of arteries. The work focuses particularly on growth and remodeling caused by sustained hypertension, increased blood flow, and ageing. A structure-based constituti ...

EPFL2010

Efficient Solution of Fluid-Structure Interaction Problems in Computational Hemodynamics

Alfio Quarteroni, Simone Deparis, Paolo Crosetto

Cardiovascular diseases are the first cause of death in industrialized countries. It is now widely established that blood fluid dynamics and its interaction with the vascular wall play an essential role in the development and evolution of vascular patholog ...

American Institute of Physics2010

Experimental characterization of the distribution of collagen fiber recruitment

Nikolaos Stergiopoulos, Sylvain Roy, Christophe Boss

The passive biomechanical behavior of blood vessels is generally modeled by a parallel arrangement of elastin and collagen, with collagen recruitment depending on vessel strain. We experimentally determined the collagen recruitment distribution using confo ...

2010

Construction of a high order fluid-structure interaction solver

Gonçalo Pena

Accuracy is critical if we are to trust simulation predictions. In settings such as fluid-structure interaction, it is all the more important to obtain reliable results to understand, for example, the impact of pathologies on blood flows in the cardiovascu ...

Elsevier2010

Arrays of EAP micro-actuators for single-cell stretching applications

Herbert Shea, Samin Akbari

Mechanical stimuli are critical for the development and maintenance of most tissues such as muscles, cartilage, bones and blood vessels. The commercially available cell culture systems replicating the in vivo environment are typically based on simple membr ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2010

Synchrotron microangiography studies of angiogenesis in mice with microemulsions and gold nanoparticles

Giorgio Margaritondo, Chao Wang

We present an effective solution for the problem of contrast enhancement in phase-contrast microangiography, with the specific objective of visualising small (< 8 A mu m) vessels in tumor-related microangiogenesis. Different hydrophilic and hydrophobic con ...

Springer Verlag2010

Differential effects of reduced cyclic stretch and perturbed shear stress within the arterial wall

Tyler Nerton Thacher

Due to the pulsatile nature of blood flow, arteries are constantly exposed to dynamic mechanical forces; the pulsatility continuously stretches the vessel wall and the flow creates a frictional force on the interior surface. These stresses, referred to as ...

EPFL2009

Combination Therapy Using Verteporfin and Ranibizumab; Optimizing the Timing in the CAM Model

Hubert van den Bergh, Elodie Debefve

Combining photodynamic therapy (PDT) using verteporfin (Visudyne(R)) with ranibizumab (Lucentis(R)) can optimize the overall treatment outcome by providing more efficacy in vessel closure, and thus reduce the need for retreatment in patients with wet age-r ...

2009

Biomechanical regulation of blood vessel growth during tissue vascularization

Witold Waldemar Kilarski

Formation of new vessels in granulation tissue during wound healing has been assumed to occur solely through sprouting angiogenesis. In contrast, we show here that neovascularization can be accomplished by nonangiogenic expansion of preexisting vessels. Us ...

2009

On-chip thermopneumatic actuation system for coagulation time measurement

Philippe Renaud, Lynda Metref, Pierre Lemaire, François Bianchi

This work reports the demonstration of a thermopneumatic microfluidic actuator used to determine blood coagulation time. In this new system, the detection principle is the obstruction of a microfluidic channel by clotted blood. The sample actuation is done ...

Elsevier2009

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