Title :
Real-time elastic deformations of soft tissues for surgery simulation
Author :
Cotin, Stéphane ; Delingette, Hervé ; Ayache, Nicholas
Author_Institution :
Epidaure Project, Inst. Nat. de Recherche en Inf. et Autom., Sophia-Antipolis, France
Abstract :
We describe a novel method for surgery simulation including a volumetric model built from medical images and an elastic modeling of the deformations. The physical model is based on elasticity theory which suitably links the shape of deformable bodies and the forces associated with the deformation. A real time computation of the deformation is possible thanks to a preprocessing of elementary deformations derived from a finite element method. This method has been implemented in a system including a force feedback device and a collision detection algorithm. The simulator works in real time with a high resolution liver model
Keywords :
biomechanics; computer graphics; digital simulation; elastic deformation; finite element analysis; medical computing; real-time systems; surgery; collision detection algorithm; deformable bodies; elastic modeling; elasticity theory; elementary deformations; finite element method; force feedback device; high resolution liver model; medical images; physical model; preprocessing; real time computation; real time elastic deformations; soft tissues; surgery simulation; volumetric model; Biological tissues; Biomedical imaging; Computational modeling; Deformable models; Elasticity; Finite element methods; Force feedback; Medical simulation; Shape; Surgery;
Journal_Title :
Visualization and Computer Graphics, IEEE Transactions on
DOI :
10.1109/2945.764872
