Short-term reproducibility of parameters characterizing atrial fibrillatory waves
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/605177e3-8dc2-490c-8045-d57ec0c76944
- author
- Henriksson, Mikael LU ; García-Alberola, Arcadi and Sörnmo, Leif LU
- organization
- publishing date
- 2020-01-20
- 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
- 2022-04-18 22:33:09
@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}}, }