Estimation Of Biophysical And Functional
Properties Of Artery Walls From Pulse Wave
Measured By Photoplethysmography
Author(s)
M. Huotari, K. Määttä & J. Kostamovaara
Abstract
Arterial pulse wave analysis in time and frequency domain was carried out to
find out biophysical and functional properties of artery walls measured with a
photoplethysmographic (PPG) device. Because peripheral arterial disease (PAD)
is a fatal problem all over the world, an easy diagnosis method would be needed.
It could probably be diagnosed by PPG which is a non-invasive optical technique
for detecting the arterial pulse waves. We present a study to characterize and
quantify the arterial pulse wave components based on the use of logarithmic
normal function (LNF). The measurements were carried out parallel from the
index finger and toe tip with healthy subjects. In addition, a second derivative of
the PPG signal (SNPPG) was also analyzed. The tests were applied to arterial
pulse waves from 11 subjects between 5 and 69 years. The results show good
correlation of pulse wave changes as a function of age.
Keywords: arterial stiffness, photoplethysmography, pulse wave analysis,
percussion, tidal, dicrotic, pre-ejection wave component.
1 Introduction
Arterial stiffness has been estimated with many different analysis and
procedures. One of them is the contour analysis of pulse waves. It has been
proposed as a non-invasive means in assessing arterial stiffness in
atherosclerosis. Accurate determination of the conventional parameters is usually
precluded by changed waveforms in the aged and atherosclerotic objects. In this
paper we introduce a new photoplethysmographic (PPG) way to estimate arterial
elasticity or stiffness value. It has good reproducibility and it can also correlate
Keywords
arterial stiffness, photoplethysmography, pulse wave analysis,percussion, tidal, dicrotic, pre-ejection wave component
Related Book
Other papers in this volume
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