A continuous, wearable, and wireless heart monitor using head ballistocardiogram (BCG) and head electrocardiogram (ECG)
Authors:
- 1 August 2011
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2011 (1094687X) , 4729-4732
Abstract
Continuous and wearable heart monitoring is essential for early detection and diagnosis of cardiovascular diseases. We demonstrate a continuous, wearable, and wireless heart monitor that is worn at the ear. The device has the form factor of a hearing aid and is wirelessly connected to a PC for data recording and analysis. With the ear as an anchoring point, the heart monitor measures the ballistocardiographic (BCG) motion of the head using a MEMS tri-axial accelerometer, which is an electrode-less method to measure heart rate. Additionally, electrocardiogram (ECG) is measured locally near the ear using a single-lead configuration. The peak timing delay between the head ECG and the head BCG, or RJ interval, can be extracted in the presence of noise using cross-correlation. The RJ interval is shown to correlate to the heart's pre-ejection period during both Valsalva and whole-body tilt maneuvers.Keywords
This publication has 14 references indexed in Scilit:
- Forecasting the Future of Cardiovascular Disease in the United StatesCirculation, 2011
- Non-invasive assessment of cardiac contractility on a weighing scale2009
- Non-constrained monitoring of systolic blood pressure on a weighing scalePhysiological Measurement, 2009
- Robust ballistocardiogram acquisition for home monitoringPhysiological Measurement, 2009
- Beat-by-beat changes in pre-ejection period during functional tests evaluated by impedance aortography: a step to a left ventricular contractility monitoring2007
- An ultra-wearable, wireless, low power ECG monitoring system2006
- Comparison of Polar 810 s and an Ambulatory ECG System for RR Interval Measurement During Progressive ExerciseInternational Journal of Sports Medicine, 2004
- Smart wearable systems for personalised health management: current R&D and future challenges2004
- Motion and Ballistocardiogram Artifact Removal for Interleaved Recording of EEG and EPs during MRINeuroImage, 2002
- Left Ventricular Systolic Time Intervals as Indices of Postural Circulatory Stress in ManCirculation, 1970