| A numerical method for cardiac mechanoelectric simulations. | |
| | |
MedLine Citation:
|
PMID: 19263223 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Much effort has been devoted to developing numerical techniques for solving the equations that describe cardiac electrophysiology, namely the monodomain equations and bidomain equations. Only a limited selection of publications, however, address the development of numerical techniques for mechanoelectric simulations where cardiac electrophysiology is coupled with deformation of cardiac tissue. One problem commonly encountered in mechanoelectric simulations is instability of the coupled numerical scheme. In this study, we develop a stable numerical scheme for mechanoelectric simulations. A number of convergence tests are carried out using this stable technique for simulations where deformations are of the magnitude typically observed in a beating heart. These convergence tests demonstrate that accurate computation of tissue deformation requires a nodal spacing of around 1 mm in the mesh used to calculate tissue deformation. This is a much finer computational grid than has previously been acknowledged, and has implications for the computational efficiency of the resulting numerical scheme. |
| | |
Authors:
|
Pras Pathmanathan; Jonathan P Whiteley |
Related Documents
:
|
16804743 - Estimation of cardiac bidomain parameters from extracellular measurement: two dimension... 10198523 - Brain evoked potential topographic mapping based on the diffuse approximation. 1445153 - Radiated electric field measurements in u.s. army helicopters. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-03-05 |
Journal Detail:
|
Title: Annals of biomedical engineering Volume: 37 ISSN: 1521-6047 ISO Abbreviation: Ann Biomed Eng Publication Date: 2009 May |
Date Detail:
|
Created Date: 2009-04-02 Completed Date: 2009-06-18 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0361512 Medline TA: Ann Biomed Eng Country: United States |
Other Details:
|
Languages: eng Pagination: 860-73 Citation Subset: IM |
Affiliation:
|
Computing Laboratory, University of Oxford, Wolfson Building, Parks Road, Oxford, OX1 3QD, UK. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Cardiac Electrophysiology
/
methods* Electric Conductivity Finite Element Analysis Membrane Potentials Models, Cardiovascular* Stress, Mechanical |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Characterization of the location and extent of myocardial infarction using heart vector analysis.
Next Document: Expression profile of calcium-dependent protein kinase (CDPKs) genes during the whole lifespan and u...