2D/3D Discrete Duality Finite Volume (DDFV) scheme for anisotropic- heterogeneous elliptic equations, application to the electrocardiogram simulation.

Abstract : In this paper is presented a finite volume (DDFV) scheme for solving elliptic equations with heterogeneous anisotropic conductivity tensor. That method is based on the definition of a discrete divergence and a discrete gradient operator. These discrete operators have close relationships with the continuous ones, in particulat they fulfil a duality property related with the Green formula. The operators are defined in dimension 2 and 3, their duality property is stated and used to establish the well posedness of the approximation scheme as well as its symmetry/positvness. In the last part, the method is used for the resolution of a problem arising in bio-mathematics: the ECG (electrocardiogram) simulation. This is done on a 2D slice of a realistic torso defined from segmented MRI medical images.
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Communication dans un congrès
Int. symposium on Finite Volumes for Complex Applications V, 2008, Aussois, France. pp.313-320, 2008
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Yves Coudiere, Charles Pierre, Olivier Rousseau, Rodolphe Turpault. 2D/3D Discrete Duality Finite Volume (DDFV) scheme for anisotropic- heterogeneous elliptic equations, application to the electrocardiogram simulation.. Int. symposium on Finite Volumes for Complex Applications V, 2008, Aussois, France. pp.313-320, 2008. 〈hal-00189765〉

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