Title :
Current distribution in a 3-D thorax model for impedance cardiography
Author :
Kim, Dcok W. ; Kim, Nam H. ; Kim, Won K. ; Park, Sang E.
Author_Institution :
Yonsei Univ., Seoul, South Korea
Abstract :
A 658-element, three-dimensional finite-element model of the thorax and neck using eight-node trilinear hexahedron elements was constructed for investigating the current distribution in the thorax. A three-dimensional finite-element code was developed to solve the generalized Laplace equation with Dirichlet and homogeneous Neumann boundary conditions. The current in each element was calculated from the potentials at the eight nodes. The results suggest that the current density in each organ is approximately proportional to its conductivity
Keywords :
bioelectric potentials; cardiology; finite element analysis; physiological models; 3D thorax model; Dirichlet boundary conditions; current density; current distribution; eight-node trilinear hexahedron elements; generalized Laplace equation; homogeneous Neumann boundary conditions; impedance cardiography; neck; potentials; three-dimensional finite-element code; three-dimensional finite-element model; Blood; Bones; Cardiography; Conductivity; Current density; Current distribution; Impedance; Laplace equations; Muscles; Thorax;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96171
