Reliability and Validity of Non-invasive Blood Pressure Measurement System Using Three-Axis Tactile Force Sensor.

Yoo Yoo,Ahn Ahn,Lee Lee,Cserey Cserey,Seo Seo

doi:10.3390/s19071744

Abstract

Blood pressure (BP) is a physiological parameter reflecting hemodynamic factors and is crucial in evaluating cardiovascular disease and its prognosis. In the present study, the reliability of a non-invasive and continuous BP measurement using a three-axis tactile force sensor was verified. All the data were collected every 2 min for the short-term experiment, and every 10 min for the long-term experiment. In addition, the effects on the BP measurement of external physical factors such as the tension to the radial artery on applying the device and wrist circumference were evaluated. A high correlation between the measured BP with the proposed system and with the cuff-based non-invasive blood pressure, and reproducibility, were demonstrated. All data satisfied the Association for the Advancement of Medical Instrumentation criteria. The external physical factors did not affect the measurement results. In addition to previous research indicating the high reliability of the arterial pulse waveforms, the present results have demonstrated the reliability of numerical BP values, and this implies that the three-axis force sensor can be used as a patient monitoring device.

Highlights

Blood pressure (BP) is one of the essential vital signs and abnormal BP usually requires treatment.For example, hypertension is associated with various systemic diseases which can be relieved by the early detection and the control of the high blood pressure
Hypertension is associated with various systemic diseases which can be relieved by the early detection and the control of the high blood pressure
The invasive, arterial line (A-line)/Arterial Blood Pressure (ABP) method uses a catheter inserted directly into the artery and connected to a pressure sensor, and this method is considered the gold standard of continuous BP measurement [3]

Summary

Introduction

Blood pressure (BP) is one of the essential vital signs and abnormal BP usually requires treatment. Hypertension is associated with various systemic diseases which can be relieved by the early detection and the control of the high blood pressure. Continuous BP monitoring is indispensable in monitoring patient status during surgery under general anesthesia, in the intensive care unit (ICU). In the emergency room (ER) [1,2]

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Methods

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Conclusion