@inproceedings{f8506b8d44ec47238f067d1d4172a2dd,
title = "A discrete mechanics framework for real time virtual surgical simulations with application to virtual laparoscopic nephrectomy",
abstract = "The inability to render realistic soft-tissue behavior in real time has remained a barrier to face and content aspects of validity for many virtual reality surgical training systems. Biophysically based models are not only suitable for training purposes but also for patient-specific clinical applications, physiological modeling and surgical planning. When considering the existing approaches for modeling soft tissue for virtual reality surgical simulation, the computer graphics-based approach lacks predictive capability; the mass-spring model (MSM) based approach lacks biophysically realistic soft-tissue dynamic behavior; and the finite element method (FEM) approaches fail to meet the real-time requirement. The present development stems from physics fundamental thermodynamic first law; for a space discrete dynamic system directly formulates the space discrete but time continuous governing equation with embedded material constitutive relation and results in a discrete mechanics framework which possesses a unique balance between the computational efforts and the physically realistic soft-tissue dynamic behavior. We describe the development of the discrete mechanics framework with focused attention towards a virtual laparoscopic nephrectomy application.",
keywords = "Discrete mechanics, Surgical simulation, Virtual Laparoscopic nephrectomy",
author = "Xiangmin Zhou and Nan Zhang and Desong Sha and Yunhe Shen and Tamma, {Kumar K} and Rob Sweet",
year = "2009",
doi = "10.3233/978-1-58603-964-6-459",
language = "English (US)",
isbn = "9781586039646",
series = "Studies in Health Technology and Informatics",
publisher = "IOS Press",
pages = "459--464",
booktitle = "Medicine Meets Virtual Reality 17 - NextMed",
note = "17th Annual MMVR Conference - NextMed: Design for/the Well Being, MMVR17 2009 ; Conference date: 19-01-2009 Through 22-01-2009",
}