Titre :

Modeling and Real-Time Simulation of a Vascularized Liver Tissue

Auteur(s) :

Peterlík, Igor [Auteur]
L'Institut hospitalo-universitaire de Strasbourg [IHU Strasbourg]
Duriez, Christian [Auteur]
Simulation in Healthcare using Computer Research Advances [SHACRA]
Cotin, Stéphane [Auteur]
Simulation in Healthcare using Computer Research Advances [SHACRA]

Titre de la manifestation scientifique :

MICCAI 2012 - 15th International Conference on Medical Image Computing and Computer-Assisted Intervention

Ville :

Nice

Pays :

France

Date de début de la manifestation scientifique :

2012-10-01

Éditeur :

Springer

Date de publication :

2012

Discipline(s) HAL :

Informatique [cs]/Synthèse d'image et réalité virtuelle [cs.GR]

Résumé en anglais : [en]

In Europe only, about 100,000 deaths per year are related to cirrhosis or liver cancer. While surgery remains the option that offers the foremost success rate against such pathologies, several limitations still hinder its ...
Lire la suite >In Europe only, about 100,000 deaths per year are related to cirrhosis or liver cancer. While surgery remains the option that offers the foremost success rate against such pathologies, several limitations still hinder its widespread development. Among the limiting factors is the lack of accurate planning systems, which has been a motivation for several recent works, aiming at better resection planning and training systems, relying on pre-operative imaging, anatomical and biomechanical modelling. While the vascular network in the liver plays a key role in defining the operative strategy, its influence at a biomechanical level has not been taken into account. In the paper we propose a real-time model of vascularized organs such as the liver. The model takes into account separate constitutive laws for the parenchyma and vessels, and defines a coupling mechanism between these two entities. In the evaluation section, we present results of in vitro porcine liver experiments that indicate a significant influence of vascular structures on the mechanical behaviour of tissue. We confirm the val- ues obtained in the experiments by computer simulation using standard FEM. Finally, we show that the conventional modelling approach can be efficiently approximated with the proposed composite model capable of real-time calculations.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Projet Européen :

PAtient Specific Simulation and PreOperative Realistic Training for liver surgery

Collections :

• Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL