NDLI: A variable step size LMS algorithm for the suppression of the CPR artefact from a VF signal

Content Provider	IEEE Xplore Digital Library
Author	Irusta, U. de Gauna, S.R. Ruiz, J. Aramendi, E. Lazkano, A. Gutierrez, J.J.
Copyright Year	2005
Description	Author affiliation: Univ. of the Basque Country, Bilbao (Irusta, U.; de Gauna, S.R.; Ruiz, J.; Aramendi, E.; Lazkano, A.; Gutierrez, J.J.)
Abstract	Artefacts created by thoracic compressions during cardiopulmonary resuscitation (CPR) prevent the proper classification of the cardiac rhythm by an automatic external defibrillator (AED), making a pause in CPR necessary for a correct rhythm analysis. Previously proposed adaptive filtering methods have produced satisfactory CPR cancellation results but involve complex out of hospital intervention scenarios. A new adaptive method requiring minimal modifications of the basic operation of an AED is proposed for the suppression of the CPR artefact from a ventricular fibrillation (VF) rhythm. A model of the CPR artefact, based on the instants of the thoracic compressions, is used as the reference signal of a variable step size least mean squares (LMS) algorithm. Emphasis is put on building a reference signal highly correlated to the CPR artefact and on the fine tuning of the LMS algorithm. Satisfactory results have been obtained for the average increase in signal to noise ratio (SNR) and the sensitivity of a commercially available AED
Starting Page	179
Ending Page	182
File Size	144950
Page Count	4
File Format	PDF
ISBN	0780393376
DOI	10.1109/CIC.2005.1588065
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-25
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Least squares approximation Rhythm Frequency Databases Cardiology Adaptive filters Hospitals Signal to noise ratio Electric shock Signal analysis
Content Type	Text
Resource Type	Article

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