TY - GEN
T1 - Synchronous simulation for deformation of liver and gallbladder with stretch and compression compensation
AU - Duan, Yuping
AU - Huang, Weimin
AU - Chang, Huibin
AU - Toe, Kyaw Kyar
AU - Yang, Tao
AU - Zhou, Jiayin
AU - Liu, Jiang
AU - Teo, Soo Kng
AU - Lim, Chi Wan
AU - Su, Yi
AU - Chui, Chee Kong
AU - Chang, Stephen
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - One challenge in surgical simulation is to design stable deformable models to simulate the dynamics of organs synchronously. In this paper, we develop a novel mass-spring model on the tetrahedral meshes for soft organs such as the liver and gallbladder, which can stably deform with large time steps. We model the contact forces between the organs as a kind of forces generated by the tensions of repulsive springs connecting in between the organs. The simulation system couples a pair of constraints on the length of springs with an implicit integration method. Based on the novel constraints, our simulator can efficiently preserve the volumes and geometric properties of the liver and gallbladder during the simulation. The numerical examples demonstrate that the proposed simulation system can provide realistic and stable deformable results.
AB - One challenge in surgical simulation is to design stable deformable models to simulate the dynamics of organs synchronously. In this paper, we develop a novel mass-spring model on the tetrahedral meshes for soft organs such as the liver and gallbladder, which can stably deform with large time steps. We model the contact forces between the organs as a kind of forces generated by the tensions of repulsive springs connecting in between the organs. The simulation system couples a pair of constraints on the length of springs with an implicit integration method. Based on the novel constraints, our simulator can efficiently preserve the volumes and geometric properties of the liver and gallbladder during the simulation. The numerical examples demonstrate that the proposed simulation system can provide realistic and stable deformable results.
UR - http://www.scopus.com/inward/record.url?scp=84886514630&partnerID=8YFLogxK
U2 - 10.1109/EMBC.2013.6610656
DO - 10.1109/EMBC.2013.6610656
M3 - Conference contribution
C2 - 24110843
AN - SCOPUS:84886514630
SN - 9781457702167
T3 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
SP - 4941
EP - 4944
BT - 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
T2 - 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013
Y2 - 3 July 2013 through 7 July 2013
ER -