Automatic noninvasive measurement of systolic blood pressure using photoplethysmography

Automatic noninvasive measurement of systolic blood pressure using photoplethysmography

BACKGROUND Automatic measurement of arterial blood pressure is important, but the available commercial automatic blood pressure meters, mostly based on oscillometry, are of low accuracy. METHODS In this study, we present a cuff-based technique for automatic measurement of systolic blood pressure, based on photoplethysmographic signals measured simultaneously in fingers of both hands. After in...

Noninvasive Blood Pressure Measurement Methods

This paper review the historical background of noninvasive blood pressure measurement methods with their accuracies achieved and explains the requirements for common national and international standards of accuracy. Also are shortly described the development of blood pressure measurement system and a method, named electronic palpation method (EP), suitable for the long-term measurement of heart...

Comparison of Systolic Blood Pressure Values Obtained by Photoplethysmography and by Korotkoff Sounds

In the current study, a non-invasive technique for systolic blood pressure (SBP) measurement based on the detection of photoplethysmographic (PPG) pulses during pressure-cuff deflation was compared to sphygmomanometry-the Korotkoff sounds technique. The PPG pulses disappear for cuff-pressures above the SBP value and reappear when the cuff-pressure decreases below the SBP value. One hundred and ...

Side-scattered finger-photoplethysmography: experimental investigations toward practical noninvasive measurement of blood glucose.

The aim of this study was to discover a simple/convenient geometrical arrangement of radiation sources and detector to acquire finger-photoplethysmograms (PPGs) with wavelength regions of blood glucose (BGL) absorption, toward practical noninvasive BGL measurement. First, we compared PPGs with three wavelengths: 808 nm (without water absorption), 1160 nm (with weak water absorption), and 1600 n...

Indirect measurement of systolic blood pressure during +Gz acceleration.