Acceleration of FEM-based transfer matrix computation for forward and inverse problems of electrocardiography.
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 c...
| Publicado en: | Medical & Biological Engineering & Computing Vol. 47; no. 12; pp. 1229 - 1237 |
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| Autores principales: | , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Dec2009
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104908430&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104908430 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01400118 PO0 jtl: Medical & Biological Engineering & Computing issn: 01400118 maglogo: N pubinfo: dt: Dec2009 vid: 47 iid: 12 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104908430 NLM19590912 2010540921 10.1007/s11517-009-0503-7 NLM19590912 104908430 ppf: 1229 ppct: 8 formats: fmt: @attributes: type: P tig: atl: Acceleration of FEM-based transfer matrix computation for forward and inverse problems of electrocardiography. aug: au: Farina D Jiang Y Dössel O Farina, Dmytro Jiang, Y Dössel, O affil: CST Computer Simulation Technology AG, Darmstadt, Germany sug: subj: Body Surface Potential Mapping Methods Electrocardiography Evaluation Research Finite Element Analysis Models, Anatomic ab: 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. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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