Non-Invasive Arterial Pulse Detection with Millimeter-wave Radar and Comparison With Photoplethysmography

TL;DR

This study compares millimeter-wave radar and photoplethysmography for non-invasive arterial pulse detection, demonstrating that mmWave provides more accurate pulse waveforms, which could improve cardiovascular health monitoring.

Contribution

The paper introduces a hardware prototype and experimental comparison of mmWave radar and PPG for pulse detection at the same site, highlighting mmWave's superior accuracy.

Findings

mmWave provides more accurate arterial pulse waveforms than PPG.

Both sensors can detect inter-beat intervals.

The system was tested on 23 participants.

Abstract

Cardiovascular diseases remain a leading cause of mortality and disability. The convenient measurement of cardiovascular health using smart systems is therefore a key enabler to foster accurate and early detection and diagnosis of cardiovascular diseases and it require accessing a correct pulse morphology similar to arterial pressure wave. This paper investigates the comparison between different sensor modalities, such as mmWave and photoplethysmography from the same physiological site and reference continuous non-invasive blood pressure devide. We have developed a hardware prototype and established an experiment consist of 23 test participants. Both mmWave and PPG are capable of detecting inter-beat intervals. mmWave is providing more accurate arterial pulse waveform than green photoplethysmography.