TY - JOUR
T1 - Pathological analysis of myocardial cell under ventricular tachycardia and fibrillation based on symbolic dynamics
AU - Hongxuan, Z.
AU - Yisheng, Z.
AU - Yuhong, X.
AU - Thakor, N. V.
PY - 2001
Y1 - 2001
N2 - Ventricular fibrillation (VF) is one of the most serious malignant arrhythmias usually resulting from immediate degeneration of ventricular tachycardia (VT). In order to analyse the nonlinear dynamics of the cardiac micro-mechanism under VT and VF rhythm, at the cellular level, myocardial cell action potentials are investigated under different rhythm, normal sinus rhythm, VT and VF. On the basis of nonlinear chaotic theory and symbolic dynamics, we put forward new definitions, complexity rate, etc, and obtained some useful properties for cellular electrophysiological analysis. The results of the experiments and computation show that the myocardial cellular signals under VT and VF rhythm are different kinds of chaotic signals in that the cardiac chaos attractor under VF is higher than that under VT. The analytical complexity theory has been promising in the clinical application.
AB - Ventricular fibrillation (VF) is one of the most serious malignant arrhythmias usually resulting from immediate degeneration of ventricular tachycardia (VT). In order to analyse the nonlinear dynamics of the cardiac micro-mechanism under VT and VF rhythm, at the cellular level, myocardial cell action potentials are investigated under different rhythm, normal sinus rhythm, VT and VF. On the basis of nonlinear chaotic theory and symbolic dynamics, we put forward new definitions, complexity rate, etc, and obtained some useful properties for cellular electrophysiological analysis. The results of the experiments and computation show that the myocardial cellular signals under VT and VF rhythm are different kinds of chaotic signals in that the cardiac chaos attractor under VF is higher than that under VT. The analytical complexity theory has been promising in the clinical application.
UR - http://www.scopus.com/inward/record.url?scp=0034880205&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034880205&partnerID=8YFLogxK
U2 - 10.1080/03091900110052432
DO - 10.1080/03091900110052432
M3 - Article
C2 - 11530825
AN - SCOPUS:0034880205
SN - 0309-1902
VL - 25
SP - 112
EP - 117
JO - Journal of Medical Engineering and Technology
JF - Journal of Medical Engineering and Technology
IS - 3
ER -