Abstract

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Title:: Wearable cardiac function monitoring based on synchronous sensing of electrocardiogram and mechanical signals

Author(s):: WEI Liang1; HUANG Haiyun2; YAN Supeng1; LI Yunchi1; LI Yongqin1; GONG Yushun1; 1. Teaching and Research Section of Medical Instruments and Metrology, Department of Biomedical Engineering and Imaging Medicine, Army Medical University, Chongqing 400038, China 2. Department of Ultrasound, the First Affiliated Hospital of Army Medical University, Chongqing 400038, China

Keywords:: Keywords: cardiovascular disease cardiac function wearable electrocardiogram seismocardiogram

Abstract:: Abstract: The simultaneous monitoring of the electrical and mechanical activities of the heart is critical to the comprehensive assessment of cardiac function. A wearable monitor that can synchronously collect electrocardiogram (ECG) signals and chest mechanical vibration signals is designed, with a single-chip microcomputer as the core, using ECG acquisition chip to detect ECG signals, and accelerometers to synchronously collect seismocardiogram (SCG) signals. After signal acquisition, the ECG and SCG signal characteristic points are recognized using the host computer analysis software for cardiac function estimation. The experimental results show that the estimated cardiac function indicators have strong correlations with the echocardiogram parameters, indicating that the wearable monitor based on synchronous sensing of ECG and SCG signals can be used for daily cardiac function monitoring in patients with high-risk cardiovascular diseases.