PMID- 24109853 OWN - NLM STAT- MEDLINE DCOM- 20140619 LR - 20200928 IS - 2694-0604 (Electronic) IS - 2375-7477 (Linking) VI - 2013 DP - 2013 TI - Employing ensemble empirical mode decomposition for artifact removal: extracting accurate respiration rates from ECG data during ambulatory activity. PG - 977-80 LID - 10.1109/EMBC.2013.6609666 [doi] AB - Observation of a patient's respiration signal can provide a clinician with the required information necessary to analyse a subject's wellbeing. Due to an increase in population number and the aging population demographic there is an increasing stress being placed on current healthcare systems. There is therefore a requirement for more of the rudimentary patient testing to be performed outside of the hospital environment. However due to the ambulatory nature of these recordings there is also a desire for a reduction in the number of sensors required to perform the required recording in order to be unobtrusive to the wearer, and also to use textile based systems for comfort. The extraction of a proxy for the respiration signal from a recorded electrocardiogram (ECG) signal has therefore received considerable interest from previous researchers. To allow for accurate measurements, currently employed methods rely on the availability of a clean artifact free ECG signal from which to extract the desired respiration signal. However, ambulatory recordings, made outside of the hospital-centric environment, are often corrupted with contaminating artifacts, the most degrading of which are due to subject motion. This paper presents the use of the ensemble empirical mode decomposition (EEMD) algorithm to aid in the extraction of the desired respiration signal. Two separate techniques are examined; 1) Extraction of the respiration signal directly from the noisy ECG 2) Removal of the artifact components relating to the subject movement allowing for the use of currently available respiration signal detection techniques. Results presented illustrate that the two proposed techniques provide significant improvements in the accuracy of the breaths per minute (BPM) metric when compared to the available true respiration signal. The error reduced from +/- 5.9 BPM prior to the use of the two techniques to +/- 2.9 and +/- 3.3 BPM post processing using the EEMD algorithm techniques. FAU - Sweeney, Kevin T AU - Sweeney KT FAU - Kearney, Damien AU - Kearney D FAU - Ward, Tomas E AU - Ward TE FAU - Coyle, Shirley AU - Coyle S FAU - Diamond, Dermot AU - Diamond D LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Annu Int Conf IEEE Eng Med Biol Soc JT - Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference JID - 101763872 SB - IM MH - Adult MH - *Algorithms MH - *Artifacts MH - *Electrocardiography MH - Female MH - Humans MH - Male MH - Monitoring, Ambulatory/*instrumentation MH - Respiration MH - Respiratory Rate/*physiology MH - Signal Processing, Computer-Assisted EDAT- 2013/10/11 06:00 MHDA- 2014/06/20 06:00 CRDT- 2013/10/11 06:00 PHST- 2013/10/11 06:00 [entrez] PHST- 2013/10/11 06:00 [pubmed] PHST- 2014/06/20 06:00 [medline] AID - 10.1109/EMBC.2013.6609666 [doi] PST - ppublish SO - Annu Int Conf IEEE Eng Med Biol Soc. 2013;2013:977-80. doi: 10.1109/EMBC.2013.6609666.