Anatomically-driven soft-tissue simulation strategy for cranio-maxillofacial surgery using facial muscle template model

Authors:
Hyungmin Kim;Philipp Jürgens;Lutz-Peter Nolte;Mauricio Reyes
Affiliations:
Institute for Surgical Technology and Biomechanics, University of Bern, Bern, Switzerland;Department of Cranio-Maxillofacial Surgery, University Hospital Basel, Basel, Switzerland;Institute for Surgical Technology and Biomechanics, University of Bern, Bern, Switzerland;Institute for Surgical Technology and Biomechanics, University of Bern, Bern, Switzerland
Venue:
MICCAI'10 Proceedings of the 13th international conference on Medical image computing and computer-assisted intervention: Part I
Year:
2010

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Abstract

We propose a computationally efficient and biomechanically relevant soft-tissue simulation method for cranio-maxillofacial (CMF) surgery. A template-based facial muscle reconstruction was introduced to minimize the efforts on preparing a patient-specific model. A transversely isotropic mass-tensor model (MTM) was adopted to realize the effect of directional property of facial muscles in reasonable computation time. Additionally, sliding contact around teeth and mucosa was considered for more realistic simulation. Retrospective validation study with postoperative scan of a real patient showed that there were considerable improvements in simulation accuracy by incorporating template-based facial muscle anatomy and sliding contact.