Efficient Nonlinear FEM for Soft Tissue Modelling and Its GPU Implementation within the Open Source Framework SOFA

Accurate biomechanical modelling of soft tissue is a key aspect for achieving realistic surgical simulations. However, because medical simulation is a multi-disciplinary area, researchers do not always have sufficient resources to develop an efficient and physically rigorous model for organ deformat...

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Bibliographic Details
Published inBiomedical Simulation pp. 28 - 39
Main Authors Comas, Olivier, Taylor, Zeike A., Allard, Jérémie, Ourselin, Sébastien, Cotin, Stéphane, Passenger, Josh
Format Book Chapter
LanguageEnglish
Published Berlin, Heidelberg Springer Berlin Heidelberg
SeriesLecture Notes in Computer Science
Subjects
Access Pattern
Cataract Surgery
Global Memory
Graphic Processing Unit
Memory Bandwidth
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Summary:Accurate biomechanical modelling of soft tissue is a key aspect for achieving realistic surgical simulations. However, because medical simulation is a multi-disciplinary area, researchers do not always have sufficient resources to develop an efficient and physically rigorous model for organ deformation. We address this issue by implementing a CUDA-based nonlinear finite element model into the SOFA open source framework. The proposed model is an anisotropic visco-hyperelastic constitutive formulation implemented on a graphical processor unit (GPU). After presenting results on the model’s performance we illustrate the benefits of its integration within the SOFA framework on a simulation of cataract surgery.
ISBN:9783540705208
3540705201
ISSN:0302-9743
1611-3349
DOI:10.1007/978-3-540-70521-5_4