Assessment of a Calibration-Free Method of Cuffless Blood Pressure Measurement: A Pilot Study.

ABSTRACT: This study proposes a low-cost, high-sensitivity sensor of beat-to-beat local pulse wave velocity (PWV), to be used in a cuffless blood pressure monitor (BPM).

Objective

We design an adaptive algorithm to detect the feature of the pulse wave, making it possible for two sensors to measure the local PWV in the radial artery at a short distance. Unlike the cuffless BPM that needs to use a regression model for calibration.

Method

We encapsulate the piezoelectric sensor material in a cavity and design an analog front-end circuit. This study used color ultrasound imaging equipment to measure radial arterial parameters, including the diameter and wall thickness, to aid the estimation of blood pressure (BP) using the Moens-Korteweg (MK) equation of hemodynamics.

Results

We com

SUBMITTER: Guo CY 

PROVIDER: S-EPMC10756135 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature