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Adaptive spatio-temporal filtering of disturbed ECGs: a multi-channel approach to heartbeat detection in smart clothing
Department of Biomedcal Engineering and Informatics, Univeristy Hospital of Umeå.
Department of Biomedcal Engineering and Informatics, Univeristy Hospital of Umeå.
Department of Biomedcal Engineering and Informatics, Univeristy Hospital of Umeå.
School of Textiles, University of Borås.
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2007 (English)In: Medical and Biological Engineering and Computing, ISSN 0140-0118, E-ISSN 1741-0444, Vol. 45, no 6, 515-523 p.Article in journal (Refereed) Published
Abstract [en]

Intermittent disturbances are common in ECG signals recorded with smart clothing: this is mainly because of displacement of the electrodes over the skin. We evaluated a novel adaptive method for spatio-temporal filtering for heartbeat detection in noisy multi-channel ECGs including short signal interruptions in single channels. Using multi-channel database recordings (12-channel ECGs from 10 healthy subjects), the results showed that multi-channel spatio-temporal filtering outperformed regular independent component analysis. We also recorded seven channels of ECG using a T-shirt with textile electrodes. Ten healthy subjects performed different sequences during a 10-min recording: resting, standing, flexing breast muscles, walking and pushups. Using adaptive multi-channel filtering, the sensitivity and precision was above 97% in nine subjects. Adaptive multi-channel spatio-temporal filtering can be used to detect heartbeats in ECGs with high noise levels. One application is heartbeat detection in noisy ECG recordings obtained by integrated textile electrodes in smart clothing.

Place, publisher, year, edition, pages
2007. Vol. 45, no 6, 515-523 p.
Keyword [en]
multi-channel ECG, textile electrodes, heartbeat detection, independent component analysis, noise reduction
National Category
Medical Laboratory and Measurements Technologies
Identifiers
URN: urn:nbn:se:kth:diva-75345DOI: 10.1007/s11517-007-0183-0ISI: 000247211900001PubMedID: 17440762OAI: oai:DiVA.org:kth-75345DiVA: diva2:490922
Note
QC 20120301Available from: 2012-02-06 Created: 2012-02-05 Last updated: 2017-12-08Bibliographically approved

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