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http://dx.doi.org/10.9718/JBER.2016.37.5.153

Design of CPR Artifact Removal Algorithm Based on Orthogonal Function using LMS Adaptive Filter  

Lim, Eunho (M.I.Tech Co. Ltd.)
Nam, Dong-Hoon (National Health Insurance Service)
Myoung, Hyoun-seok (Department of Biomedical Engineering, College of Health Science, Yonsei University)
Kang, Dong-Won (Mediana Co. Ltd.)
Jeon, Dae-Keun (Mediana Co. Ltd.)
Yoon, Young-Ro (Department of Biomedical Engineering, College of Health Science, Yonsei University)
Lee, Kyoung-Joung (Department of Biomedical Engineering, College of Health Science, Yonsei University)
Publication Information
Journal of Biomedical Engineering Research / v.37, no.5, 2016 , pp. 153-160 More about this Journal
Abstract
This study proposes an algorithm for removal of CPR artifact in order that automated external defibrillator (AED) can effectively diagnose ECG rhythm during cardiopulmonary resuscitation (CPR). Current AED required to interrupt chest compression for reliable rhythm analysis to avoid the effect of artifacts produced by CPR. However even temporarily interruption of chest compression during CPR adversely affects the probability of restoration of spontaneous circulation (ROSC) and survival after the delivery of the shock. Therefore, we proposed a method for removal of CPR artifacts using least mean square (LMS) filter. The removal of the CPR artifacts would enable compressions to continue during AED rhythm analysis, thereby increasing the likelihood of resuscitation success. It was tested on 31 segments of shockable and 300 segments of non-shockable ECG signals recorded from three pigs during CPR. In the result, sensitivity (Se) and specificity (Sp) analysis on the test segments showed values of Se = 3.2%, Sp = 66.0% and Se = 96.8%, Sp = 98.7% in the case of unfiltered and filtered signals during CPR. In conclusion, it was shown that the proposed method can be a useful tool to exactly diagnose the ECG rhythm during the CPR.
Keywords
out of hospital cardiac arrest (OHCA); cardiopulmonary resuscitation (CPR); automated external defibrillator (AED); least mean square (LMS) filter;
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