Details

Autor(en) / Beteiligte

• Marchesseau, Stéphanie
• Heimann, Tobias
• Chatelin, Simon
• Willinger, Rémy
• Delingette, Hervé
• Pluim, Josien P. W.
• Jiang, Tianzi
• Viergever, Max A.
• Navab, Nassir

Titel

Multiplicative Jacobian Energy Decomposition Method for Fast Porous Visco-Hyperelastic Soft Tissue Model

Ist Teil von

• Medical Image Computing and Computer-Assisted Intervention – MICCAI 2010, 2010, Vol.13 (Pt 1), p.235-242

Ort / Verlag

Berlin, Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2010

Quelle

MEDLINE

Beschreibungen/Notizen

• Simulating soft tissues in real time is a significant challenge since a compromise between biomechanical accuracy and computational efficiency must be found. In this paper, we propose a new discretization method, the Multiplicative Jacobian Energy Decomposition (MJED) which is an alternative to the classical Galerkin FEM (Finite Element Method) formulation. This method for discretizing non-linear hyperelastic materials on linear tetrahedral meshes leads to faster stiffness matrix assembly for a large variety of isotropic and anisotropic materials. We show that our new approach, implemented within an implicit time integration scheme, can lead to fast and realistic liver deformations including hyperelasticity, porosity and viscosity. Additional material can be found at http://sites.google.com/site/stephaniemarchesseau/recentresearch/liversurgerysimulation.