title: Possible four-electrode configurations for measuring cardiac tissue fiber rotation.
abstract: A number of electrode configurations, based on the usual four-electrode probe, are analysed in relation to the effect that changes in cardiac fiber rotation have on the potentials measured. Simulations are carried out using a mathematical model and a new solution technique, based on Fourier series followed by a simple one-dimensional finite difference scheme. This electrode analysis leads to the proposal of an in-principle method for determining cardiac fiber rotation.
authors.affiliation: School of Science, Griffith University, Nathan 4111, Queensland, Australia. Barbara.Johnston@griffith.edu.au
authors.forename: Barbara M
authors.initials: BM
authors.lastname: Johnston
authors.forename: Peter R
authors.initials: PR
authors.lastname: Johnston
mesh_terms: D000818:Animals; D018780:Body Surface Potential Mapping / Q000295:instrumentation / Q000379:methods*; D003198:Computer Simulation; D004566:Electrodes; D006321:Heart / Q000033:anatomy & histology* / Q000502:physiology*; D006801:Humans; D008955:Models, Cardiovascular; D018485:Muscle Fibers, Skeletal / Q000166:cytology* / Q000502:physiology*