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- W3000587898 abstract "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 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." @default.
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- W3000587898 date "2020-02-01" @default.
- W3000587898 modified "2023-10-18" @default.
- W3000587898 title "Short-term reproducibility of parameters characterizing atrial fibrillatory waves" @default.
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- W3000587898 doi "https://doi.org/10.1016/j.compbiomed.2020.103613" @default.
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