Concept

Hémorragie méningée

Publications associées (55)

Finite element analysis of normal pressure hydrocephalus: influence of CSF content and anisotropy in permeability

Jean-François Molinari, Jean-Marie Drezet, Kamal Shahim

Hydrocephalus is a cerebral disease where brain ventricles enlarge and compress the brain parenchyma towards the skull leading to symptoms like dementia, walking disorder and incontinence. The origin of normal pressure hydrocephalus is still obscure. In or ...

Taylor & Francis2010

Spinal Subarachnoid Space Pressure Measurements in an In Vitro Spinal Stenosis Model: Implications on Syringomyelia Theories

Bryn Andrew Martin

Full explanation for the pathogenesis of syringomyelia (SM), a neuropathology characterized by the formation of a cystic cavity (syrinx) in the spinal cord (SC), has not yet been provided. It has been hypothesized that abnormal cerebrospinal fluid (CSF) pr ...

2010

Effect of Flow Diversion Treatment on Very Small Ruptured Aneurysms

Luca Augsburger, Daniel Ruefenacht

BACKGROUND: Ruptured aneurysms of < 2 mm are not amenable to endovascular coiling and therefore pose a significant treatment challenge. ...

2010

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

Effect of flow diverter porosity on intraaneurysmal blood flow

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

Growth and rupture, the two events that dominate the evolution of an intracranial aneurysm, are both dependent on intraaneurysmal flow. Decrease of intraaneurysmal flow is considered an attractive alternative for treating intracranial aneurysms by minimall ...

2009

Effect of Flow Diverter Porosity on Intra-aneurysmal Blood Flow

Background and Purpose: Growth and rupture, the two events that dominate the evolution of an intracranial aneurysm, are both dependent on intraaneurysmal flow. Decrease of intraaneurysmal flow is considered an attractive alternative for treating intracrani ...

2009

Mathematical models of cerebral hemodynamics for detection of vasospasm in major cerebral arteries

Ali H. Sayed, Xiao Hu

Cerebral vasospasm is a typical complication occurring after Subarachnoid Hemorrhage, which may lead to delayed cerebral ischemia and death. The standard method to detect vasospasm is angiography, which is an invasive procedure. Monitoring of vasospasm i ...

2008

Fluid mechanics of intrathecal drug delivery

Radboud Michael Nelissen

The aim of this principally experimental study is to understand from fluid mechanic principles why an insignificant anesthetic dose administered as a short bolus into the cerebrospinal fluid inside the subarachnoid space provides greater pain relief than a ...

EPFL2008

Training and evaluation of lumbar punctures in a VR-environment using a 6DOF haptic device

Friedhelm Christoph Hummel

A virtual reality system for the training of the lumbar puncture intervention is presented. We use a haptic device with six degrees of freedom (6DOF) to feedback forces that resist needle insertion and rotation. An improved haptic volume rendering approach ...

IOS Press2008

Reproducibility of haemodynamical simulations in a subject-specific stented aneurysm model - A report on the Virtual Intracranial Stenting Challenge 2007

Philippe Reymond, Luca Augsburger, Daniel Ruefenacht

This paper presents the results of the Virtual Intracranial Stenting Challenge (VISC) 2007, an international initiative whose aim was to establish the reproducibility of state-of-the-art haemodynamical simulation techniques in subject-specific stented mode ...

2008

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