The aim of this study was to assess the effect of filtering techniques on the time-domain analysis of the ECG. Multi-lead ECG recordings obtained from chronic atrial fibrillation (AF) patients after successful external cardioversion have been acquired. Several high-pass filtering techniques and three cut-off frequency values were used: Bessel and Butterworth four-pole and two-pole bidirectional and unidirectional filters, at 0.01, 0.05 and 0.5 Hz low cut-off frequency. As a reference, a beat-by-beat linear piecewise interpolation was used to remove baseline wander, on each P-wave. Results show that ECG filtering affects the estimation of P-wave duration in a manner that depends upon the type of filter used: particularly, the bidirectional filters caused negligible variation of P-wave duration, while unidirectional ones provoked an increase higher than 8%.

Effect of high-pass filtering on ECG signal on the analysis of patients prone to atrial fibrillation / Censi, F; Calcagnini, G; Triventi, M; Mattei, E; Bartolini, P; Corazza, I; Boriani, Giuseppe. - In: ANNALI DELL'ISTITUTO SUPERIORE DI SANITÀ. - ISSN 0021-2571. - 45:4(2009), pp. 427-431. [10.1590/S0021-25712009000400012]

Effect of high-pass filtering on ECG signal on the analysis of patients prone to atrial fibrillation

BORIANI, Giuseppe
2009

Abstract

The aim of this study was to assess the effect of filtering techniques on the time-domain analysis of the ECG. Multi-lead ECG recordings obtained from chronic atrial fibrillation (AF) patients after successful external cardioversion have been acquired. Several high-pass filtering techniques and three cut-off frequency values were used: Bessel and Butterworth four-pole and two-pole bidirectional and unidirectional filters, at 0.01, 0.05 and 0.5 Hz low cut-off frequency. As a reference, a beat-by-beat linear piecewise interpolation was used to remove baseline wander, on each P-wave. Results show that ECG filtering affects the estimation of P-wave duration in a manner that depends upon the type of filter used: particularly, the bidirectional filters caused negligible variation of P-wave duration, while unidirectional ones provoked an increase higher than 8%.
2009
45
4
427
431
Effect of high-pass filtering on ECG signal on the analysis of patients prone to atrial fibrillation / Censi, F; Calcagnini, G; Triventi, M; Mattei, E; Bartolini, P; Corazza, I; Boriani, Giuseppe. - In: ANNALI DELL'ISTITUTO SUPERIORE DI SANITÀ. - ISSN 0021-2571. - 45:4(2009), pp. 427-431. [10.1590/S0021-25712009000400012]
Censi, F; Calcagnini, G; Triventi, M; Mattei, E; Bartolini, P; Corazza, I; Boriani, Giuseppe
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1080149
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