Key result
A non-invasive pulse pressure monitoring method using Doppler radar and a piezoelectric finger pulse sensor showed good agreement with standard sphygmomanometer measurements.
Why the study?
Current technology lacks the ability for unobtrusive, continuous monitoring required for individuals with conditions such as hypertension.
Can pulse pressure be accurately estimated using pulse transient time from Doppler radar and a piezoelectric finger pulse sensor compared to a standard sphygmomanometer?
Can pulse pressure be accurately estimated using pulse transient time from Doppler radar and a piezoelectric finger pulse sensor compared to a standard sphygmomanometer?
A novel non-invasive method using Doppler radar and a finger pulse sensor can estimate pulse pressure in good agreement with standard sphygmomanometry.
Supports feasibility of radar-based monitoring in research; leaves open clinical adoption pending larger validation.
Many individuals suffer from ailments such hypertension that require frequent health monitoring. Unfortunately, current technology does not possess the ability for unobtrusive, continuous monitoring. This paper proposes estimation of pulse pressure based on pulse transient time determined from one non-contact, and one contact sensor: Doppler radar for non-contact detection of heart beat, and piezoelectric finger pulse sensor. The time delay between heart beat and finger pulse was determined using MATLAB software, and pulse wave velocity (PWV) was calculated. Finally, subjects' pulse pressure estimated using PWV was found to be in good agreement with pulse pressure measured using an off the shelf sphygmomanometer by reading and taking difference of systolic and diastolic blood pressure.
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Kuwahara et al. (2019) studied this question. Pulse pressure estimation using Doppler radar and piezoelectric finger pulse sensor vs. Off-the-shelf sphygmomanometer was evaluated on Agreement of estimated pulse pressure with sphygmomanometer measurements. A non-invasive pulse pressure monitoring method using Doppler radar and a piezoelectric finger pulse sensor showed good agreement with standard sphygmomanometer measurements.
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