Comparison of methods of automatic blood pressure measurement in the same device

TL;DR

This study compares tacho-oscillographic and oscillometric blood pressure measurement methods within the same device, demonstrating the advantages of oscillometric with PPG sensors for automatic monitoring.

Contribution

The paper introduces a combined measurement system and software that enable direct comparison of two blood pressure measurement methods in a single device.

Findings

Oscillometric method with PPG sensors eliminates the need for empiric criteria.

Correlation analysis improves accuracy of systolic and diastolic detection.

Oscillometric with PPG shows promising potential for automatic blood pressure monitors.

Abstract

Comparison of tacho-oscillographic and oscillometric methods for human blood pressure measurement with cuff occlusion in the same device at the same time is described. For this purpose the measurement system and software for signal processing that realize these methods in the same device was developed. Experiment shows that oscillometric method with photoplethysmographic (PPG) sensors does not require empiric criteria to search systolic and diastolic blood pressure parameters due to possibility to apply correlation analysis. Perspectives of applying oscillometric method with PPG sensors in automatic blood pressure monitors is showed.