Using an injection signal to reduce motion artifacts in capacitive ECG measurements

A.A.M. Serteyn, R. Vullings, M. Meftah, J.W.M. Bergmans

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

7 Citations (Scopus)

Abstract

Capacitive electrodes are a promising alternative to the conventional adhesive ECG electrodes. They provide more comfort to the patient when integrated in everyday objects (e.g. beds or seats) for long-term monitoring. However, the application of such electrodes is limited by their high sensitivity to motion artifacts. Artifacts caused by variation of the coupling capacitance are studied here. An injection signal is proposed to track these variations in real-time. An adaptive filter then estimates the motion artifact and cancels it from the recorded ECG. The amplitude of the motion artifact is reduced in average by 29 dB in simulation and by 20 dB in a lab environment. Our method has the advantages that it is able to reduce motion artifacts occurring in the frequency band of the ECG and that it does not require knowledge about the measurement system.
Original languageEnglish
Title of host publicationProceedings of the 2013 Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 3-7 July 2013, Osaka, Japan
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages4795-4798
DOIs
Publication statusPublished - 2013
Event35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2013) - Osaka, Japan
Duration: 3 Jul 20137 Jul 2013
Conference number: 35

Conference

Conference35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2013)
Abbreviated titleEMBC 2013
CountryJapan
CityOsaka
Period3/07/137/07/13

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