Pathological analysis of myocardial cell under ventricular tachycardia and fibrillation based on symbolic dynamics

Yisheng Zhu, Hongxuan Zhang, Nitish V. Thakor

Research output: Contribution to conferencePaper

Abstract

Ventricular fibrillation (VF) is one of the most serious malignant arrhymias usually resulted from immediate degeneration of ventricular tachycardia (VT). In order to analyze the nonlinear dynamics of cardiac micro-mechanism under VT and VF rhythm, at the cellular level, myocardial cell action potentials (APs) are investigated under different rhythm, normal sinus rhythm, VT and VF. On the basis of nonlinear chaotic theory and symbolic dynamics, we forwarded some 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 that the cardiac chaos attractor under VF is higher than that under VT The analytical complexity theory has a good promising in the clinical application.

Original languageEnglish (US)
Pages253-256
Number of pages4
StatePublished - Dec 1 2001
Externally publishedYes
Event2001 IEEE Workshop on Statitical Signal Processing Proceedings - Singapore, Singapore
Duration: Aug 6 2001Aug 8 2001

Conference

Conference2001 IEEE Workshop on Statitical Signal Processing Proceedings
CountrySingapore
CitySingapore
Period8/6/018/8/01

ASJC Scopus subject areas

  • Signal Processing

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  • Cite this

    Zhu, Y., Zhang, H., & Thakor, N. V. (2001). Pathological analysis of myocardial cell under ventricular tachycardia and fibrillation based on symbolic dynamics. 253-256. Paper presented at 2001 IEEE Workshop on Statitical Signal Processing Proceedings, Singapore, Singapore.