Marching cubes: A high resolution 3D surface construction algorithm
SIGGRAPH '87 Proceedings of the 14th annual conference on Computer graphics and interactive techniques
Inviscid axisymmetrization of an elliptical vortex
Journal of Computational Physics
Dynamic real-time deformations using space & time adaptive sampling
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Remeshed smoothed particle hydrodynamics for the simulation of viscous and heat conducting flows
Journal of Computational Physics
A hybrid particle level set method for improved interface capturing
Journal of Computational Physics
Modeling of Soft Tissue Deformation for Laparoscopic Surgery Simulation
MICCAI '98 Proceedings of the First International Conference on Medical Image Computing and Computer-Assisted Intervention
A level-set method for interfacial flows with surfactant
Journal of Computational Physics
Journal of Computational Physics
Flow simulations using particles: bridging computer graphics and CFD
ACM SIGGRAPH 2008 classes
An immersed boundary method for smoothed particle hydrodynamics of self-propelled swimmers
Journal of Computational Physics
A regularized Lagrangian finite point method for the simulation of incompressible viscous flows
Journal of Computational Physics
Journal of Computational Physics
Shape optimization for drag reduction in linked bodies using evolution strategies
Computers and Structures
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In computer aided surgery the accurate simulation of the mechanical behavior of human organs is essential for the development of surgical simulators. In this paper we introduce particle based simulations of two different human organ materials modeled as linear viscoelastic solids. The constitutive equations for the material behavior are discretized using a particle approach based on the Smoothed Particle Hydrodynamics (SPH) method while the body surface is tracked using level sets. A key aspect of this approach is its flexibility which allows the simulation of complex time varying topologies with large deformations. The accuracy of the original formulation is significantly enhanced by using a particle reinitialization technique resulting in remeshed Smoothed Particle Hydrodynamics (rSPH). The mechanical parameters of the systems used in the simulations are derived from experimental measurements on human cadaver organs. We compare the mechanical behavior of liver- and kidney-like materials based on the dynamic simulations of a tensile test case. Moreover, we present a particle based reconstruction of the liver topology and its strain distribution under a small local load. Finally, we demonstrate a unified formulation of fluid structure interaction based on particle methods.