Non-contact Atrial Fibrillation Detection using a 24-GHz Microwave Doppler Radar

This study presents a wireless non-contact atrial fibrillation (AFib) detection method based on a 24-GHz microwave Doppler sensor. Microwave Doppler sensors use the Doppler effect to measure the vibration velocity of an object in a non-contact manner. Heartbeat components can be extracted from Doppl...

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Bibliographic Details
Published in:	2022 IEEE Sensors pp. 1 - 4
Main Authors:	Izumi, Shintaro, Murase, Sho, Fukuda, Itsumi, Taki, Kenta, Toyama, Kazunori, Inuzuka, Tadashi, Mochizuki, Hideki, Kawaguchi, Hiroshi
Format:	Conference Proceeding
Language:	English
Published:	IEEE 30-10-2022
Subjects:	Atrial fibrillation Atrial Fibrillation (AFib) microwave Doppler Microwave measurement Microwave theory and techniques non-contact measurement Seismic measurements Seismocardiogram (SCG) Vibration measurement Vibrations Wireless sensor networks
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Summary:	This study presents a wireless non-contact atrial fibrillation (AFib) detection method based on a 24-GHz microwave Doppler sensor. Microwave Doppler sensors use the Doppler effect to measure the vibration velocity of an object in a non-contact manner. Heartbeat components can be extracted from Doppler signals, allowing the measured body surface vibrations to be correlated to a seismocardiogram (SCG). Our study applies this technique to the detection of AFib. Using a microwave Doppler sensor, we measured body surface vibrations of healthy subjects and AFib patients, and compared the differences. The differences in feature values obtained through frequency analysis and machine learning indicated the possibility of non-contact detection of AFib using a microwave Doppler sensor.
ISSN:	2168-9229
DOI:	10.1109/SENSORS52175.2022.9967282