Title: A real-time R-wave detection method for wireless ambulatory ECG telemetry

Authors: Chenchen Dai; Yan Deng; Feifan Chen

Addresses: State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, 100084 Beijing, China ' State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, 100084 Beijing, China ' State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, 100084 Beijing, China

Abstract: Wireless ambulatory ECG telemetry has been widely used in heart rate monitoring in altered gravity conditions, evaluation of high pressure nervous syndrome (HPNS), etc. Comparing with resting ECG monitoring in the hospital, ambulatory ECG features motion artefacts caused by limb movements, including peak interference, instantaneous distortion and amplitude saltation of QRS complex. Beside, in wireless networks, packets are probably dropped because of RF range interference and complex testing environment. To solve these problems, the paper proposes a novel real-time R-wave detection method for wireless ambulatory ECG telemetry (DET). Three sequences of ambulatory ECG were measured and analysed by a custom-made bioelectricity wireless telemetry system. The overall sensitivity, positive predictivity and failed detection were 99.7%, 99.9% and 0.47%, respectively.

Keywords: ambulatory ECG; electrocardiograms; wireless telemetry; motion artefacts; R-wave detection; real time detection; biomedical engineering; limb movements; peak interference; instantaneous distortion; amplitude saltation; QRS complex.

DOI: 10.1504/IJBET.2015.071406

International Journal of Biomedical Engineering and Technology, 2015 Vol.19 No.1, pp.26 - 39

Received: 14 Oct 2014
Accepted: 10 Mar 2015
Published online: 25 Aug 2015 *

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