Key result
A two-step spatiotemporal QRST cancellation technique produced QRS-related residuals with substantially lower amplitude in atrial fibrillation ECGs, improving suitability for spectral analysis.
Why the study?
Does a spatiotemporal two-step approach to QRST complex cancellation improve the characterization of atrial fibrillation in surface ECGs?
Does a spatiotemporal two-step approach to QRST complex cancellation improve the characterization of atrial fibrillation in surface ECGs?
A novel spatiotemporal QRST cancellation technique reduces QRS residual amplitude, improving spectral analysis of atrial fibrillation on surface ECGs.
May improve AF spectral analysis on ECGs; leaves open clinical validation.
A new two-step approach to QRST complex cancellation in ECGs with atrial fibrillation is presented in which spatiotemporal properties of the ECG are considered. The method was found to produce QRS related residuals with a substantially lower amplitude and thereby the resulting residual ECG should be better suited for spectral analysis.
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Stridh et al. (2002) studied this question. A two-step spatiotemporal QRST cancellation technique produced QRS-related residuals with substantially lower amplitude in atrial fibrillation ECGs, improving suitability for spectral analysis.
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