Fluorescent imaging of the vortex core in the rabbit heart

Author

Efimov, I.R. ; Cheng, Y. ; Sidorov, V.Y. ; Wollenzier, B.

Author_Institution

Cleveland Clinic Found., OH, USA

Volume

1

fYear

1999

fDate

1999

Abstract

Vortex-like electrical activity underlies most of cardiac arrhythmias. The type and severity of cardiac arrhythmias depend upon the number and dynamics of the vortices. The authors simulated vortex-like electrical activity in a 2D Luo-Rudy model (1991) and observed three basic types of vortices: circular, cycloidal and linear. Theory predicts that the linear core is present in normal myocardium, while the cycloidal and circular cores are in tissues with suppressed sodium and calcium ionic conductivity, i.e. during ischemia

Keywords

bioelectric phenomena; cardiology; fluorescence; physiological models; 2D Luo-Rudy model; Ca; Na; cardiac electrophysiology; circular vortex; cycloidal vortex; fluorescent imaging; linear vortex; normal myocardium; rabbit heart; vortex core; vortex-like electrical activity; Calcium; Conductivity; Fluorescence; Heart; Ischemic pain; Morphology; Myocardium; Rabbits; Shape; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.802199

Filename

802199