Comparison of the impedance cardiogram with continuous wave radar using body-contact antennas

Buxi, D.; Dugar, R.; Redouté, Jean-Michel; Yuce, M. R.

doi:10.1109/EMBC.2017.8036919

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Comparison of the impedance cardiogram with continuous wave radar using body-contact antennas

Buxi, D.; Dugar, R.; Redouté, Jean-Michel et al.

2017 • In Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society, p. 693-696

Peer reviewed

Permalink
https://hdl.handle.net/2268/236420

DOI
10.1109/EMBC.2017.8036919

PubMed
29059967

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Keywords :

Electric Impedance; Electrocardiography; Humans; Male; Radar; Reproducibility of Results; Signal Processing, Computer-Assisted

Abstract :

[en] This paper describes a continuous wave (CW) radar system with body-contact antennas and basic signal processing. The goal is to assess the signals' reproducibility across different subjects as well as a respiration cycle. Radar signals using body-contact antennas with a carrier frequency of 868 MHz are used to acquire the cardiac activity at the sternum. The radar I and Q channel signals are combined to form their magnitude. Signals are collected from six healthy males during paced breathing conditions. The electrocardiogram (ECG) and impedance cardiogram (ICG) signals are acquired simultaneously as reference. The chosen feature in the radar signal is the maximum of its second derivative, which is closest to the ICG B-point. The median and mean absolute errors in pre-ejection period (PEP) in milliseconds between the ICG's B-point and chosen feature in the radar signal range from -6-119.7 ms and 7.8-62.3 ms for all subjects. The results indicate that a reproducible radar signal is obtained from all six subjects. More work is needed on understanding the origin of the radar signals using ultrasound as a comparison. © 2017 IEEE.

Disciplines :

Electrical & electronics engineering

Author, co-author :

Buxi, D.; Monash University, Melbourne, Australia

Dugar, R.; Monash University, Melbourne, Australia

Redouté, Jean-Michel ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes microélectroniques intégrés

Yuce, M. R.; Monash University, Melbourne, Australia

Language :

English

Title :

Comparison of the impedance cardiogram with continuous wave radar using body-contact antennas

Publication date :

2017

Event name :

39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2017

Event date :

11 July 2017 through 15 July 2017

Audience :

International

Journal title :

Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society

ISSN :

1557-170X

Publisher :

Institute of Electrical and Electronics Engineers Inc.

Pages :

693-696

Peer reviewed :

Peer reviewed

Commentary :

9781509028092

Available on ORBi :

since 07 June 2019

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