| Zugriffsnummer | 10355 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Sprache | Englisch |
| Titel | Transversal versus longitudinal current propagation on a cardiac tissue and its relation to MCG |
| Autor(in); Institution |
Weber dos Santos, Rodrigo; 8.21, Bioelektrizität und -magnetismus, PTB-Berlin
Dickstein, Flavio; Universidade Federal do Rio de Janeiro, BRAZIL
Marchesin, Dan; Instituto de Matematica Pura e Aplicada, Rio de Janeiro, BRAZIL
|
| Quelle/Jahr | Biomedizinische Technik: 47 (2002), Ergänzungsband 1, Teil 1, 249 - 252 |
| ISSN | 0939-4990 |
| Verlag | Berlin: Schiele & Schön |
| Konferenzangaben | 36. Jahrestagung der Deutschen Gesllschaft für Biomedizinische Technik 2002, Karlsruhe, 25-27 September 2002, Deutschland |
| Freie Schlagworte | cardiac tissue ; electrical propagation ; modelling ; magnetocardiography |
| Zusammenfassung | Recently, B. Roth and M. Woods suggested a reexamination of MCG interpretation through currents transversal to the wave propagation direction. They also gave a formula J' (ϑ) for the dependence of the current intensity on the angle ϑ between straight fibers and the plane wave front. Here we study more general situations, including current injection at multiple points and curved fibers. We conclude that transversal currents are always present locally, in spite of electric pattern complexity and fiber curvature. Moreover, the J' (ϑ) relation holds locally. Nevertheless, computations indicate that macroscopically the far magnetic field may be similar to the one generated by a current dipole parallel to the wave propagation direction. |
