# A feasibility study on non-invasive and non-contact jugular venous pulse measurement using 60 GHz FMCW radar

## TL;DR

This study explores using 60 GHz radar to non-invasively measure jugular venous pulse, offering a promising alternative for monitoring cardiovascular health.

## Contribution

A novel non-invasive and non-contact method for JVP measurement using 60 GHz FMCW radar is introduced and validated.

## Key findings

- Radar-derived JVP signals showed good performance and localization within a DoA range of −20∘ to +20∘.
- The radar system demonstrated comparable results to photoplethysmography and catheterization data in heart failure monitoring.
- Subject-specific calibration may be needed due to anatomical variability.

## Abstract

The jugular venous pulse (JVP) reflects right atrial pressure and provides diagnostic insight into cardiovascular and pulmonary health. However, reliable assessment remains difficult due to neck adiposity, anatomical variability and suboptimal positioning. Although central venous catheterization is the gold standard, its invasive nature restricts routine or long-term use. This study introduces a non-invasive method for JVP estimation using a 60 GHz frequency-modulated continuous wave (FMCW) radar. The system captures venous pulsations at the skin surface and applies eigenbeamforming to enhance signal-to-noise ratio and pulse clarity. Radar parameters were optimized for signal fidelity and validated through morphological comparison with simultaneously recorded photoplethysmography (PPG) signals. Additionally, we compared radar-derived JVP signals with previously recorded catheterization data from a patient with early-stage heart failure to assess clinical relevance. Signal localization was successfully achieved within a direction-of-arrival (DoA) range of −20∘ to +20∘, demonstrating the radar’s precision. While the selected parameters consistently yielded good performance in our set-up, individual anatomical differences may require subject-specific calibration. These findings support the potential of 60 GHz FMCW radar for contactless JVP monitoring, with promising implications for early detection and remote management of heart failure.