A baseline wander tracking system for artifact rejection in long-term electrocardiography
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Autor:innen
Niederhauser, Thomas
Marisa, Thanks
Kohler, Lukas
Haeberlin, Andreas
Abächerli, Roger
Goette, Josef
Jacomet, Marcel
Vogel, Rolf
Autor:in (Körperschaft)
Publikationsdatum
2016
Typ der Arbeit
Studiengang
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
IEEE Transactions on Biomedical Circuits and Systems
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
10
Ausgabe / Nummer
1
Seiten / Dauer
255-265
Patentnummer
Verlag / Herausgebende Institution
IEEE
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
Long-term electrocardiogram (ECG) signals might suffer from relevant baseline disturbances during physical activity. Motion artifacts in particular are more pronounced with dry surface or esophageal electrodes which are dedicated to prolonged ECG recording. In this paper we present a method called baseline wander tracking (BWT) that tracks and rejects strong baseline disturbances and avoids concurrent saturation of the analog front-end. The proposed algorithm shifts the baseline level of the ECG signal to the middle of the dynamic input range. Due to the fast offset shifts, that produce much steeper signal portions than the normal ECG waves, the true ECG signal can be reconstructed offline and filtered using computationally intensive algorithms. Based on Monte Carlo simulations we observed reconstruction errors mainly caused by the non-linearity inaccuracies of the DAC. However, the signal to error ratio of the BWT is higher compared to an analog front-end featuring a dynamic input ranges above 15 mV if a synthetic ECG signal was used. The BWT is additionally able to suppress (electrode) offset potentials without introducing long transients. Due to its structural simplicity, memory efficiency and the DC coupling capability, the BWT is dedicated to high integration required in long-term and low-power ECG recording systems.
Schlagwörter
Fachgebiet (DDC)
600 - Technik, Medizin, angewandte Wissenschaften
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
1932-4545
1940-9990
1940-9990
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Nein
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Closed
Lizenz
Zitation
NIEDERHAUSER, Thomas, Thanks MARISA, Lukas KOHLER, Andreas HAEBERLIN, Reto WILDHABER, Roger ABÄCHERLI, Josef GOETTE, Marcel JACOMET und Rolf VOGEL, 2016. A baseline wander tracking system for artifact rejection in long-term electrocardiography. IEEE Transactions on Biomedical Circuits and Systems. 2016. Bd. 10, Nr. 1, S. 255–265. DOI 10.1109/tbcas.2015.2395997. Verfügbar unter: https://irf.fhnw.ch/handle/11654/46819