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Short-term reproducibility of parameters characterizing atrial fibrillatory waves

Henriksson, Mikael LU ; García-Alberola, Arcadi and Sörnmo, Leif LU (2020) In Computers in Biology and Medicine 117.
Abstract
Objective: To study reproducibility of f-wave parameters in terms of inter- and intrapatient variation. Approach: Five parameters are investigated: dominant atrial frequency (DAF), f-wave amplitude, phase dispersion, spectral organization, and spatiotemporal variability. For each parameter, the variance ratio R, defined as the ratio between inter- and intrapatient variance, is computed; a larger R corresponds to better stability and reproducibility. The study population consists of 20 high-quality ECGs recorded from patients with atrial fibrillation (11/9 paroxysmal/persistent). Main results: The well-established parameters DAF and f-wave amplitude were associated with considerably larger R-values (13.1 and 21.0, respectively) than phase... (More)
Objective: To study reproducibility of f-wave parameters in terms of inter- and intrapatient variation. Approach: Five parameters are investigated: dominant atrial frequency (DAF), f-wave amplitude, phase dispersion, spectral organization, and spatiotemporal variability. For each parameter, the variance ratio R, defined as the ratio between inter- and intrapatient variance, is computed; a larger R corresponds to better stability and reproducibility. The study population consists of 20 high-quality ECGs recorded from patients with atrial fibrillation (11/9 paroxysmal/persistent). Main results: The well-established parameters DAF and f-wave amplitude were associated with considerably larger R-values (13.1 and 21.0, respectively) than phase dispersion (2.4), spectral organization (2.4), and
spatiotemporal variability (2.7). The use of an adaptive harmonic frequency tracker to estimate the DAF resulted in a larger R (13.1) than did block-based maximum likelihood estimation (6.3). Significance: This study demonstrates a noticeable difference in reproducibility among f-wave parameters, a result
which should be taken into account when performing f-wave analysis. (Less)
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Atrial fibrillation, ECG, f-wave characteristics, Signal quality, Reproducibility
in
Computers in Biology and Medicine
volume
117
pages
8 pages
publisher
Elsevier
external identifiers
  • scopus:85077983621
  • pmid:32072968
ISSN
0010-4825
DOI
10.1016/j.compbiomed.2020.103613
language
English
LU publication?
yes
id
605177e3-8dc2-490c-8045-d57ec0c76944
date added to LUP
2020-05-25 09:29:51
date last changed
2025-10-14 13:27:41
@article{605177e3-8dc2-490c-8045-d57ec0c76944,
  abstract     = {{Objective: To study reproducibility of f-wave parameters in terms of inter- and intrapatient variation. Approach: Five parameters are investigated: dominant atrial frequency (DAF), f-wave amplitude, phase dispersion, spectral organization, and spatiotemporal variability. For each parameter, the variance ratio R, defined as the ratio between inter- and intrapatient variance, is computed; a larger R corresponds to better stability and reproducibility. The study population consists of 20 high-quality ECGs recorded from patients with atrial fibrillation (11/9 paroxysmal/persistent). Main results: The well-established parameters DAF and f-wave amplitude were associated with considerably larger R-values (13.1 and 21.0, respectively) than phase dispersion (2.4), spectral organization (2.4), and<br/>spatiotemporal variability (2.7). The use of an adaptive harmonic frequency tracker to estimate the DAF resulted in a larger R (13.1) than did block-based maximum likelihood estimation (6.3). Significance: This study demonstrates a noticeable difference in reproducibility among f-wave parameters, a result<br/>which should be taken into account when performing f-wave analysis.}},
  author       = {{Henriksson, Mikael and García-Alberola, Arcadi and Sörnmo, Leif}},
  issn         = {{0010-4825}},
  keywords     = {{Atrial fibrillation; ECG; f-wave characteristics; Signal quality; Reproducibility}},
  language     = {{eng}},
  month        = {{01}},
  publisher    = {{Elsevier}},
  series       = {{Computers in Biology and Medicine}},
  title        = {{Short-term reproducibility of parameters characterizing atrial fibrillatory waves}},
  url          = {{http://dx.doi.org/10.1016/j.compbiomed.2020.103613}},
  doi          = {{10.1016/j.compbiomed.2020.103613}},
  volume       = {{117}},
  year         = {{2020}},
}