title: A meshless EFG-based algorithm for 3D deformable modeling of soft tissue in real-time.
abstract: The meshless element-free Galerkin method was generalized and an algorithm was developed for 3D dynamic modeling of deformable bodies in real time. The efficacy of the algorithm was investigated in a 3D linear viscoelastic model of human spleen subjected to a time-varying compressive force exerted by a surgical grasper. The model remained stable in spite of the considerably large deformations occurred. There was a good agreement between the results and those of an equivalent finite element model. The computational cost, however, was much lower, enabling the proposed algorithm to be effectively used in real-time applications.
authors.affiliation: Biomechanics Lab. Sharif University of Technology, Tehran, Iran.
authors.forename: Elahe
authors.initials: E
authors.lastname: Abdi
authors.forename: Farzam
authors.initials: F
authors.lastname: Farahmand
authors.forename: Mohammad
authors.initials: M
authors.lastname: Durali
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D055119:Elastic Modulus / Q000502:physiology*; D054459:Elasticity Imaging Techniques / Q000379:methods / Q000706:statistics & numerical data*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D010535:Laparoscopy; D008954:Models, Biological; D013154:Spleen / Q000033:anatomy & histology*; D014584:User-Computer Interface