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Medical & Biological Engineering & Computing
Erschienen in: Medical & Biological Engineering & Computing 12/2009

01.12.2009 | Original Article

Acceleration of FEM-based transfer matrix computation for forward and inverse problems of electrocardiography

verfasst von: Dmytro Farina, Y. Jiang, O. Dössel

Erschienen in: Medical & Biological Engineering & Computing | Ausgabe 12/2009

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Abstract

The distributions of transmembrane voltage (TMV) within the cardiac tissue are linearly connected with the patient’s body surface potential maps (BSPMs) at every time instant. The matrix describing the relation between the respective distributions is referred to as the transfer matrix. This matrix can be employed to carry out forward calculations in order to find the BSPM for any given distribution of TMV inside the heart. Its inverse can be used to reconstruct the cardiac activity non-invasively, which can be an important diagnostic tool in the clinical practice.The computation of this matrix using the finite element method can be quite time-consuming. In this work, a method is proposed allowing to speed up this process by computing an approximate transfer matrix instead of the precise one. The method is tested on three realistic anatomical models of real-world patients. It is shown that the computation time can be reduced by 50% without loss of accuracy.
Vorheriger Artikel A procedure for evaluation of non-invasive blood pressure simulators
Nächster Artikel Right atrial organization and wavefront analysis in atrial fibrillation

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Metadaten
Titel
Acceleration of FEM-based transfer matrix computation for forward and inverse problems of electrocardiography
verfasst von
Dmytro Farina
Y. Jiang
O. Dössel
Publikationsdatum
01.12.2009
Verlag
Springer-Verlag
Erschienen in
Medical & Biological Engineering & Computing / Ausgabe 12/2009
Print ISSN: 0140-0118
Elektronische ISSN: 1741-0444
DOI
https://doi.org/10.1007/s11517-009-0503-7

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