Title :
Wave propagation in the atrial myocardium: dispersion properties in the normal state and before fibrillation
Author :
Anosov, Oleg ; Berdyshev, Sergey ; Khassanov, Ildar ; Schaldach, Max ; Hensel, Bernhard
Author_Institution :
Dept. of Biomed. Eng., Friedrich-Alexander-Univ. Erlangen-Nurnberg, Erlangen, Germany
Abstract :
The formalism of wave propagation in passive media is applied to the spread of the electrical excitation in the human atrial myocardium. From an analog of the classical dispersion dependence that is obtained by wavelet decomposition a precursor parameter is calculated that serves to predict fibrillation already before its onset.
Keywords :
biocontrol; bioelectric potentials; biomembrane transport; cardiology; dispersion (wave); electrocardiography; muscle; wave propagation; wavelet transforms; atrial fibrillation; cardiac arrhythmia; classical dispersion dependence; dispersion properties; electrical excitation; electrical intracardiac signals; human atrial myocardium; ion channels; membrane; monophasic action potential; normal state; passive media; precursor parameter; wave propagation; wavelet decomposition; Biomedical engineering; Electrodes; Fibrillation; Frequency; Heart rate; Humans; Microscopy; Myocardium; Resonance; Signal analysis; Action Potentials; Atrial Fibrillation; Computer Simulation; Heart Atria; Heart Conduction System; Heart Valve Prosthesis; Humans; Mitral Valve; Models, Cardiovascular; Reference Values; Sensitivity and Specificity; Signal Processing, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.2002.805467
