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Continuous Blood Pressure Monitoring using Wrist-worn Bio-impedance Sensors with Wet Electrodes.

Authors :
Ibrahim B
Jafari R
Source :
IEEE Biomedical Circuits and Systems Conference : healthcare technology : [proceedings]. IEEE Biomedical Circuits and Systems Conference [IEEE Biomed Circuits Syst Conf] 2018 Oct; Vol. 2018. Date of Electronic Publication: 2018 Dec 24.
Publication Year :
2018

Abstract

Continuous blood pressure (BP) monitoring is essential for diagnosis and management of cardiovascular disorders. Currently, BP is measured using cuff-based methods, which are obtrusive and not suitable for continuous monitoring. Estimation of BP using pulse transit time (PTT) is a prominent method that eliminates the need for a cuff. In this paper, we present a new method to estimate BP based on PTT measurements from an array of 2×2 bio-impedance sensors placed on the wrist, which can be integrated into a small wearable device such as a smart watch for continuous BP monitoring. Diastolic and systolic BP were estimated using AdaBoost regression model based on PTT features extracted from the wrist bio-impedance signals. Data was collected from three participants using our custom bio-impedance sensors. Our method can estimate BP accurately with correlation coefficient, mean absolute error (MAE) and standard deviation (STD) of 0.92, 1.71 and 2.46 mmHg for the diastolic BP and 0.94, 2.57 and 4.35 mmHg for the systolic BP.

Details

Language :
English
Volume :
2018
Database :
MEDLINE
Journal :
IEEE Biomedical Circuits and Systems Conference : healthcare technology : [proceedings]. IEEE Biomedical Circuits and Systems Conference
Publication Type :
Academic Journal
Accession number :
31312808
Full Text :
https://doi.org/10.1109/BIOCAS.2018.8584783