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Contactless ECG Continuously Monitors the Heart

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The researchers demonstrated an experimental setup for contactless ECG monitoring using millimeter-wave radar.

Tthe new approach using radar offers several advantages over the standard approach, according to Yan Chen of the School of Cyber Science and Technology at the University of Science and Technology of China.

Credit: University of Science and Technology Of China/IEEE

Researchers at the University of Science and Technology of China have invented a contactless electrocardiogram (ECG) that infers electrical signals through artificial intelligence (AI) and millimeter-wave radar.

The researchers used an off-the-shelf millimeter-wave-radar instrument to detect cardiovascular movements in all three directions over time, then programmed an AI algorithm to deduce electrical activity from this information.

They performed 200 tests with 35 participants from ages 18 to 25, positioning the radar above their bodies during four physiological states to model common daily conditions.

The framework yielded a median timing error of less than 14 milliseconds and a median morphology accuracy of 90% versus standard ECG.

From IEEE Spectrum
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