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Waveform Characterization of Atrial Fibrillation Using Phase Information

Stridh, Martin LU ; Husser, Daniela; Bollmann, Andreas and Sörnmo, Leif LU (2009) In IEEE Transactions on Biomedical Engineering 56(4). p.1081-1089
Abstract
A novel method for characterization of f-wave morphology in atrial fibrillation (AF) is presented. The method decomposes atrial activity into fundamental and harmonic components, dividing each component into short blocks for which the amplitudes, frequencies, and phases are estimated. The phase delays between the fundamental and each of the harmonics, here referred to as harmonic phase relationships, are used as features of f-wave morphology. The estimated waves are clustered into typical morphologic patterns. The performance of the method is illustrated by simulated signals, ECG signals recorded from 36 patients with organized AF, and an ECG signal recorded during drug loading with flecainide. The results show that the method can... (More)
A novel method for characterization of f-wave morphology in atrial fibrillation (AF) is presented. The method decomposes atrial activity into fundamental and harmonic components, dividing each component into short blocks for which the amplitudes, frequencies, and phases are estimated. The phase delays between the fundamental and each of the harmonics, here referred to as harmonic phase relationships, are used as features of f-wave morphology. The estimated waves are clustered into typical morphologic patterns. The performance of the method is illustrated by simulated signals, ECG signals recorded from 36 patients with organized AF, and an ECG signal recorded during drug loading with flecainide. The results show that the method can distinguish a wide variety of f-wave morphologies, and that typical morphologies can be established for further analysis of AF. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
characterization, waveform, signal phase, Atrial fibrillation (AF), ECG signal processing
in
IEEE Transactions on Biomedical Engineering
volume
56
issue
4
pages
1081 - 1089
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000265937200018
  • scopus:67349119042
ISSN
0018-9294
DOI
10.1109/TBME.2008.2006624
language
English
LU publication?
yes
id
cd3411e4-a7fc-4f48-95cd-f465246d6a9f (old id 1426043)
date added to LUP
2009-06-26 14:09:09
date last changed
2017-04-30 13:00:08
@article{cd3411e4-a7fc-4f48-95cd-f465246d6a9f,
  abstract     = {A novel method for characterization of f-wave morphology in atrial fibrillation (AF) is presented. The method decomposes atrial activity into fundamental and harmonic components, dividing each component into short blocks for which the amplitudes, frequencies, and phases are estimated. The phase delays between the fundamental and each of the harmonics, here referred to as harmonic phase relationships, are used as features of f-wave morphology. The estimated waves are clustered into typical morphologic patterns. The performance of the method is illustrated by simulated signals, ECG signals recorded from 36 patients with organized AF, and an ECG signal recorded during drug loading with flecainide. The results show that the method can distinguish a wide variety of f-wave morphologies, and that typical morphologies can be established for further analysis of AF.},
  author       = {Stridh, Martin and Husser, Daniela and Bollmann, Andreas and Sörnmo, Leif},
  issn         = {0018-9294},
  keyword      = {characterization,waveform,signal phase,Atrial fibrillation (AF),ECG signal processing},
  language     = {eng},
  number       = {4},
  pages        = {1081--1089},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Biomedical Engineering},
  title        = {Waveform Characterization of Atrial Fibrillation Using Phase Information},
  url          = {http://dx.doi.org/10.1109/TBME.2008.2006624},
  volume       = {56},
  year         = {2009},
}