PMID: 22571145May 11, 2012Paper

The analysis of ECG of different state based on approximate entropy

Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation
Fanghu JiaoQing Jiao

Abstract

In this study, ECG signals of normal sinus rhythm (NSR), ventricular tachycardia (VT) and ventricular fibrillation (VF) were taken out to extract the RR interval series. Approximate entropy (ApEn) values of the RR interval series were calculated and compared among the three groups by ANOVA methods. It was found that the values of ApEn were increased significantly from NSR to VT and then to VF. Approximate entropy may be regarded as an index to discriminate the ECG signals of different state.

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