Imperial College London
Portrait Picture

Professor Timothy Constandinou

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Bioelectronics
 
 
 
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Contact

 

+44 (0)20 7594 0790t.constandinou Website

 
 
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Assistant

 

Miss Izabela Wojcicka-Grzesiak +44 (0)20 7594 0701

 
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Location

 

B407Bessemer BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lauteslager:2019:10.1109/tbcas.2019.2922775,
author = {Lauteslager, T and Tommer, M and Lande, TS and Constandinou, TG},
doi = {10.1109/tbcas.2019.2922775},
journal = {IEEE Transactions on Biomedical Circuits and Systems},
pages = {814--824},
title = {Coherent UWB radar-on-chip for in-body measurement of cardiovascular dynamics},
url = {http://dx.doi.org/10.1109/tbcas.2019.2922775},
volume = {13},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Coherent ultra-wideband (UWB) radar-on-chip technology shows great promise for developing portable and low-cost medical imaging and monitoring devices. Particularly monitoring the mechanical functioning of the cardiovascular system is of interest, due to the ability of radar systems to track sub-mm motion inside the body at a high speed. For imaging applications, UWB radar systems are required, but there are still significant challenges with in-body sensing using low-power microwave equipment and wideband signals. Recently it was shown for the first time, on a single subject, that the arterial pulse wave can be measured at various locations in the body, using coherent UWB radar-on-chip technology. The current work provides more substantial evidence, in the form of new measurements and improved methods, to demonstrate that cardiovascular dynamics can be measured using radar-on-chip. Results across four participants were found to be robust and repeatable. Cardiovascular signals were recorded using radar-on-chip systems and electrocardiography (ECG). Through ECG-aligned averaging, the arterial pulse wave could be measured at a number of locations in the body. Pulse arrival time could be determined with high precision, and blood pressure pulse wave propagation through different arteries was demonstrated. In addition, cardiac dynamics were measured from the chest. This work serves as a first step in developing a portable and low-cost device for long-term monitoring of the cardiovascular system, and provides the fundamentals necessary for developing UWB radar-on-chip imaging systems.
AU  - Lauteslager,T
AU  - Tommer,M
AU  - Lande,TS
AU  - Constandinou,TG
DO  - 10.1109/tbcas.2019.2922775
EP  - 824
PY  - 2019///
SN  - 1932-4545
SP  - 814
TI  - Coherent UWB radar-on-chip for in-body measurement of cardiovascular dynamics
T2  - IEEE Transactions on Biomedical Circuits and Systems
UR  - http://dx.doi.org/10.1109/tbcas.2019.2922775
UR  - https://ieeexplore.ieee.org/document/8736338
UR  - http://hdl.handle.net/10044/1/70783
VL  - 13
ER  -
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