Journal
PROGRESS IN BIOPHYSICS & MOLECULAR BIOLOGY
Volume 103, Issue 2-3, Pages 284-291Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pbiomolbio.2010.09.004
Keywords
Soft-tissue simulation; Mass-tensor model; Cranio-maxillofacial
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Funding
- Swiss National Center of Competence in Research
- AO/ASIF Foundation, Davos, Switzerland
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We propose a computationally efficient, bio-mechanically relevant soft-tissue simulation method for cranio-maxillofacial (CMF) surgery. Special emphasis is given to comply with the current clinical workflow. A template-based facial muscle prediction was introduced to avoid laborious segmentation from medical images. In addition, transversely isotropic mass-tensor model (MTM) was applied to realize the directional behavior of facial muscles in short computation time. Finally, sliding contact was incorporated to mimic realistic boundary condition in error-sensitive regions. Mechanical simulation result was compared with commercial finite element software. And retrospective validation study with postoperative scan of four CMF cases was performed. (C) 2010 Elsevier Ltd. All rights reserved.
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