Publications associées à Effet Windkessel

Arterial remodeling in response to increased blood flow using a constituent-based model

Nikolaos Stergiopoulos, Alkiviadis Tsamis

Previous theoretical models of arterial remodeling in response to changes in blood flow were based on the assumption that material properties of the arterial wall remain unchanged during the remodeling process. According to experimental findings, however, ...

2009

Three- and four-element Windkessel models: assessment of their fitting performance in a large cohort of healthy middle-aged individuals

Nikolaos Stergiopoulos, Patrick Segers, Nico Westerhof

Lumped-parameter models are used to estimate the global arterial properties by fitting the model to measured (aortic) pressure and flow. Different model configurations coexist, and it is still an open question as to which model optimally reflects the arter ...

2008

Plaque-prone hemodynamics impair endothelial function in pig carotid arteries

Nikolaos Stergiopoulos, Sylvain Roy, Paolo Silacci, Veronica Gambillara

Hemodynamic forces play an active role in vascular pathologies, particularly in relation to the localization of atherosclerotic lesions. It has been established that low shear stress combined with cyclic reversal of flow direction (oscillatory shear stress ...

2006

Arterial pressure transfer characteristics: effects of travel time

Nikolaos Stergiopoulos, Nico Westerhof

We investigated the quantitative contribution of all local conduit arterial, blood, and distal load properties to the pressure transfer function from brachial artery to aorta. The model was based on anatomical data, Young's modulus, wall viscosity, blood v ...

2006

On parallel computation of blood flow in human arterial network based on 1-D modelling

Alfio Quarteroni, Luca Formaggia

Parallel computation of blood flow in a 1D model of human arterial network has been carried out employing a Taylor Galerkin finite element method. Message passing interface libraries have been used on Origin 2000 SGI machine. A Greedy strategy for load-dis ...

Springer-Verlag2003

Geometrical, functional, and histomorphometric adaptation of rat carotid artery in induced hypertension

Nikolaos Stergiopoulos, Martin Zulliger

Acute and long-term (up to 56 days) evolution of geometry, structural properties, vascular smooth muscle (VSM) tone and histomorphometric properties of the rat common carotid arteries under induced hypertension were investigated. Hypertension was induced i ...

2003

Effects of longitudinal stretch on VSM tone and distensibility of muscular conduit arteries

Nikolaos Stergiopoulos, Martin Zulliger

With progressing age, large arteries diminish their longitudinal stretch, which in extreme cases results in tortuosity. Increased age is also associated with loss of vessel distensibility. We measured pressure-diameter curves from muscular porcine carotid ...

2002

Relation of effective arterial elastance to arterial system properties

Nikolaos Stergiopoulos, Patrick Segers, Nico Westerhof

Effective arterial elastance (E(a)), defined as the ratio of left ventricular (LV) end-systolic pressure and stroke volume, lumps the steady and pulsatile components of the arterial load in a concise way. Combined with E(max), the slope of the LV end-systo ...

2002

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Effet Windkessel

Arterial remodeling in response to increased blood flow using a constituent-based model

Three- and four-element Windkessel models: assessment of their fitting performance in a large cohort of healthy middle-aged individuals

Plaque-prone hemodynamics impair endothelial function in pig carotid arteries

Arterial pressure transfer characteristics: effects of travel time

Arterial in vitro remodeling

On parallel computation of blood flow in human arterial network based on 1-D modelling

Geometrical, functional, and histomorphometric adaptation of rat carotid artery in induced hypertension

Effects of longitudinal stretch on VSM tone and distensibility of muscular conduit arteries

Relation of effective arterial elastance to arterial system properties

Estimation of local aortic elastic properties with MRI

Graph Chatbot

Chattez avec Graph Search

On parallel computation of blood flow in human arterial network based on 1-D modelling

Relation of effective arterial elastance to arterial system properties

Plaque-prone hemodynamics impair endothelial function in pig carotid arteries

Estimation of local aortic elastic properties with MRI

Three- and four-element Windkessel models: assessment of their fitting performance in a large cohort of healthy middle-aged individuals

Geometrical, functional, and histomorphometric adaptation of rat carotid artery in induced hypertension

Effects of longitudinal stretch on VSM tone and distensibility of muscular conduit arteries

Arterial remodeling in response to increased blood flow using a constituent-based model

Arterial in vitro remodeling

Arterial pressure transfer characteristics: effects of travel time