4.5 Article

Novel multiscale E-metric cross-sample entropy-based cardiac arrhythmia detection and its performance investigation in reference to multiscale cross-sample entropy-based analysis

期刊

SIGNAL IMAGE AND VIDEO PROCESSING
卷 17, 期 6, 页码 2845-2856

出版社

SPRINGER LONDON LTD
DOI: 10.1007/s11760-023-02503-4

关键词

Atrial fibrillation; Congestive heart failure; Multiscale cross-sample entropy; Multiscale error metric cross-sample entropy; Multiscale sample entropy

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Cardiac arrhythmia can be assessed using cardiac rate variability. This study proposes Multiscale Cross Sample Entropy (MCSEn) to quantify complexity of arrhythmia at different scales, but it fails to provide complexity measures for smaller scale factors. To address this issue, a new algorithm called Multiscale E-metric Cross Sample Entropy (MECSEn) is proposed, which evaluates the complexity between arrhythmia subjects (atrial fibrillation and congestive heart failure) and healthy subjects at multiple scales using coarse-grained process. The study finds that subjects with atrial fibrillation behave as white noise, while subjects with congestive heart failure behave as pink noise. The t test shows significant differences between MCSEn, MECSEn, and multiscale sample entropy algorithm (MSEn) in evaluating the complexity of healthy and arrhythmia subjects.
Cardiac arrhythmia is a common difficulty of human cardiovascular system and can be evaluated using cardiac rate variability. Multiscale Cross Sample Entropy (MCSEn) is used as a reference to quantify cardiac arrhythmia on the basis of complexity for double-interval series at multiple scales. This measure is failed to provide complexity with reduced scale factors for large data lengths. To hypothesize this measure for two series cardiac data by using coarse-grained process, Multiscale E-metric Cross Sample Entropy (MECSEn) has been proposed and is used to measure complexity between arrhythmia subjects, named atrial fibrillation (AF) and congestive heart failure (CHF) and healthy subjects at multiple scales. Besides short series data and undefined value, MECSEn has come up with a very new concept of banishing the use of a large number of scale factors for evaluating the complexity between two different interval series across multiple scales. It makes the proposed algorithm less time consumer. Both measures have found subjects derived from AF behave as white noise and subjects derived from CHF behave as pink noise. The t test validates MCSEn and the proposed algorithm, MECSEn by providing p < 0.00001. Moreover, MCSEn and MECSEn algorithms are compared with multiscale sample entropy algorithm (MSEn) which uses single cardiac series to evaluate complexity of healthy and arrhythmia subjects.

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