Browse > Article
http://dx.doi.org/10.9718/JBER.2010.31.4.316

Interpolation Technique to Improve the Accuracy of RR-interval in Portable ECG Device  

Lee, Eun-Mi (Department of Biomedical Engineering, College of Medicine, Chungbuk National University)
Hong, Joo-Hyun (Department of Biomedical Engineering, College of Medicine, Chungbuk National University)
Cha, Eun-Jong (Department of Biomedical Engineering, College of Medicine, Chungbuk National University)
Lee, Tae-Soo (Department of Biomedical Engineering, College of Medicine, Chungbuk National University)
Publication Information
Journal of Biomedical Engineering Research / v.31, no.4, 2010 , pp. 316-320 More about this Journal
Abstract
HRV(Heart rate variability) analysis parameter is widely used as an index to evaluate the autonomic nervous system and cardiac function. For reliable HRV analysis, we need to acquire the accurate ECG signals. Most of commercially available portable ECG devices have low sampling rate because of low power consumption and small size issues, which make it difficult to measure RR-interval accurately. This study is to improve the accuracy of RR-interval by developing R-wave interpolation technique, based on the morphological characteristics of the QRS complex. When the developed method was applied to ECG obtained at 200 Hz and the results were compared with 1000 Hz reference device, the error range decreased by 1.33 times in sitting and by 2.38 times in cycling exercise. Therefore, the proposed interpolation technique is thought to be useful to improve the accuracy of R-R interval in the portable ECG device with low sampling rate.
Keywords
RR-interval; ECG; HRV; interpolation; QRS complex;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 M. Merri, D.C. Farden, J.G. Mottley, and E.L. Titlebaum, "Sampling frequency of the electrocardiogram for spectral analysis of the heart rate variability," IEEE Transactions on Biomedical Engineering, vol. 37, no. 1, pp.99-106, 1990.   DOI   ScienceOn
2 F. Badilini, AJ. Moss, and E.L. Titlebaum, "Cubic Spline Baseline Estimation in Ambulatory ECG Recordings for the Measurement of ST Segment Displacements," in Proc. the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Orlando, FL, USA, Oct. 1991, pp.584-585.
3 P. Castiglioni, L. Piccini, and M.Di. Milan, "Interpolation Technique for Extracting Features from ECG Signals Sampled at Low Sampling Rates," Computers in Cardiology, vol. 30, pp.481-484, 2003.
4 G.M. Frieson, T.C. Jannett, M.A. Jadallah, S.L. Yates, S.R. Quint, and H.T. Nagle, "A Comparison of the Noise Sensitivity of Nine QRS Detection Algorithms," IEEE Transactions on Biomedical Enginnering, vol. 37, no. 1, pp.85-98, 1990.   DOI   ScienceOn
5 K. Dewitte, C. Fierens, D. Stockl, and L.M. Thienpont, "Application of the Bland–Altman Plot for Interpretation of Method-Comparison Studies: A Critical Investigation of Its Practice," Clinical Chemistry, vol. 48, no. 1, pp.799-801, 2002.
6 Statistics Korea, "Number of death(1983-) according to the causes of death(236 items)/gender/age(5 years), Death rate(2000-)," Available at http://www.kostat.go.kr, Accessed Feb 19, 2010.
7 T.S. Lee, and J.H. Hong, "Current Developments of Biomedical Mobile Devices for Ubiquitous Healthcare," J. of Biomed. Eng. Res., vol. 30, no. 3, pp.185-190, 2009.   과학기술학회마을
8 Task Force of The European Society of Cardiology and The North American Society of Pacing and Electrophysiology, "Heart rate variability - Standards of measurement, physiological interpretation, and clinical use," European Heart Journal, vol. 17, no. 3, pp.354-381, 1996.   DOI   ScienceOn
9 G. Nollo, L. Faes, B. Pellegrini, A. Porta, and R. Antolini, "Synchronization Index for Quantifying Nonlinear Causal Coupling between RR Interval and Systolic Arterial Pressure after Myocardial Infarction," Computers in Cardiology, vol. 27, pp.143-146, 2000.
10 J. Allen, "Photoplethysmography and Its Application in Clinical Physiological Measurement," Physiological Measurement, vol. 28, no. 3, pp. R1-R39, 2007.   DOI   ScienceOn