Adaptive nonlinear elastic FEM for realistic prediction of soft tissue in craniofacial surgery simulations

Evgeny Gladilin; Stefan Zachow; Peter Deuflhard; Hans-Christian Hege

doi:10.1117/12.466906

17 May 2002 Adaptive nonlinear elastic FEM for realistic prediction of soft tissue in craniofacial surgery simulations

Evgeny Gladilin, Stefan Zachow, Peter Deuflhard, Hans-Christian Hege

Proceedings Volume 4681, Medical Imaging 2002: Visualization, Image-Guided Procedures, and Display; (2002) https://doi.org/10.1117/12.466906
Event: Medical Imaging 2002, 2002, San Diego, California, United States

Abstract

In craniofacial surgery simulations, the realistic prediction of a patient's postoperative appearance is of utmost importance. Due to the complexity of biomechanical behavior of soft tissue simplified models such as widespread linear elastic models are usually applied. However, large deformations often occurring in craniofacial surgery can't be accurately modeled via linear elastic approach, since it is generally limited by the assumption of small deformations. In this paper, we present an adaptive nonlinear elastic approach based on the finite element discretization of 3D patient's model, which is free of linearization limitations and yields more realistic results in simulations of large facial tissue deformation.

Citation Download Citation

Evgeny Gladilin, Stefan Zachow, Peter Deuflhard, and Hans-Christian Hege "Adaptive nonlinear elastic FEM for realistic prediction of soft tissue in craniofacial surgery simulations", Proc. SPIE 4681, Medical Imaging 2002: Visualization, Image-Guided Procedures, and Display, (17 May 2002); https://doi.org/10.1117/12.466906

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