Finding coordinated atrial activity during ventricular fibrillation using wavelet decomposition

Author

Addison, Paul S. ; Watson, James N. ; Clegg, Gareth R. ; Steen, Petter A. ; Robertson, Colin E.

Author_Institution

Fac. of Eng. & Comput., Napier Univ. of Edinburgh, UK

Volume

21

Issue

1

fYear

2002

Firstpage

58

Lastpage

65

Abstract

Until recently, the ECG recorded during ventricular fibrillation was thought to represent disorganized and unstructured electrical activity of the heart. Using a new signal analysis technique based on wavelet decomposition, we have begun to reveal previously unreported structure within the ECG tracing. We report preliminary findings that provide the first evidence linking this structure to unexpected mechanical phenomena occurring in the heart.

Keywords

electrocardiography; medical signal processing; signal classification; wavelet transforms; Morlet wavelet; aorta pressure trace; coordinated atrial activity; porcine model; signal analysis technique; sudden cardiac death; surface ECG; unstructured electrical activity; ventricular fibrillation; wavelet decomposition; zero phase plot; Anesthesia; Animals; Continuous wavelet transforms; Electrocardiography; Fibrillation; Heart; Medical treatment; Pressure measurement; Signal analysis; Wavelet analysis; Animals; Atrial Function, Right; Death, Sudden, Cardiac; Diagnosis, Differential; Electric Stimulation; Electrocardiography; Electrophysiologic Techniques, Cardiac; Heart Arrest, Induced; Heart Atria; Humans; Models, Animal; Models, Cardiovascular; Models, Statistical; Pressure; Swine; Tachycardia, Ventricular; Ventricular Fibrillation;

fLanguage

English

Journal_Title

Engineering in Medicine and Biology Magazine, IEEE

Publisher

ieee

ISSN

0739-5175

Type

jour

DOI

10.1109/51.993194

Filename

993194