An Unobtrusive Wearable Device for Ambulatory Monitoring of Pulse Transit Time to Estimate Central Blood Pressure

Hanne O. Austad, Jon Vedum, Morten H. Røed, Steffen Dalgard, Tomas Brødreskift, Anders E. Liverud, Frode Strisland, Trine M. Seeberg

2016

Abstract

There is a clinical need for improved ambulatory, frequent and unobtrusive monitoring of blood pressure and cardiac parameters like systolic time intervals. Truly unobtrusive wearable devices combining impedance cardiography with other sensors may be one possible solution. The IsenseU-BP+ device presented in this article measures single channel ECG, impedance cardiography and photo plethysmography at the chest. The device also measures activity and posture, as well as skin temperature. In this study, we report on the possibility to use these signals to measure pulse transit time for estimating blood pressure changes. Six subjects has been tested. Four of them showed good correlation between PTT and mean arterial pressure while two of the subjects had too low signal to noise ratio in the photoplethysmography signal for good estimation of PTT. Thus these results show that the quality of the raw data is promising for calculating a pulse transit time that shows good coherence with mean arterial pressure.

Paper Citation

in Harvard Style

Austad H., Vedum J., Røed M., Dalgard S., Brødreskift T., Liverud A., Strisland F. and Seeberg T. (2016). An Unobtrusive Wearable Device for Ambulatory Monitoring of Pulse Transit Time to Estimate Central Blood Pressure . In Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, (BIOSTEC 2016) ISBN 978-989-758-170-0, pages 179-186. DOI: 10.5220/0005701401790186

in Bibtex Style

@conference{biodevices16,
author={Hanne O. Austad and Jon Vedum and Morten H. Røed and Steffen Dalgard and Tomas Brødreskift and Anders E. Liverud and Frode Strisland and Trine M. Seeberg},
title={An Unobtrusive Wearable Device for Ambulatory Monitoring of Pulse Transit Time to Estimate Central Blood Pressure},
booktitle={Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, (BIOSTEC 2016)},
year={2016},
pages={179-186},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005701401790186},
isbn={978-989-758-170-0},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 9th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 1: BIODEVICES, (BIOSTEC 2016)
TI - An Unobtrusive Wearable Device for Ambulatory Monitoring of Pulse Transit Time to Estimate Central Blood Pressure
SN - 978-989-758-170-0
AU - Austad H.
AU - Vedum J.
AU - Røed M.
AU - Dalgard S.
AU - Brødreskift T.
AU - Liverud A.
AU - Strisland F.
AU - Seeberg T.
PY - 2016
SP - 179
EP - 186
DO - 10.5220/0005701401790186