The combination method: a numerical technique for electrocardiographic calculations

A method for electrocardiographic and other bioelectric calculations combining the Green's function boundary integral technique with the finite-element method is presented. Both the boundary and the finite-element method have been used extensively in electrocardiography for calculating epicardi...

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Bibliographic Details
Published in:IEEE transactions on biomedical engineering 1989-04, Vol.36 (4), p.456-461
Main Authors: Stanley, P.C., Pilkington, T.C.
Format: Article
Language:English
Subjects:
Anisotropic magnetoresistance
Bioelectric phenomena
Biological and medical sciences
Conductivity
Electric potential
Electrocardiography
Electrocardiography. Vectocardiography
Electrodiagnosis. Electric activity recording
Finite element methods
Generators
Heart
Integral equations
Investigative techniques, diagnostic techniques (general aspects)
Mathematics
Medical sciences
Models, Biological
Torso
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Summary:A method for electrocardiographic and other bioelectric calculations combining the Green's function boundary integral technique with the finite-element method is presented. Both the boundary and the finite-element method have been used extensively in electrocardiography for calculating epicardial and torso potentials. The boundary integral method is well suited for finding potentials in regions of isotropic conductivity and is computationally efficient, requiring unknown potentials to be calculated on the bounding surfaces only. It also compares favorably in accuracy with the finite-element method in those regions. The finite-element method is used in solving for potentials in regions of anisotropic conductivity since no simplifying assumptions or transformations of anisotropic regions into isotropic regions before solution are required. Combining the two methods, using the boundary integral method in isotropic regions and the finite-element method in anisotropic regions, allows the advantages of both methods to be exploited.< >
ISSN:0018-9294
1558-2531
DOI:10.1109/10.18752