Transactions of Japanese Society for Medical and Biological Engineering
Online ISSN : 1881-4379
Print ISSN : 1347-443X
ISSN-L : 1347-443X
Estimation of arterial pulse wave velocity from peripheral plethysmogram using hand elevation
Yusei NaitoAkira TanakaMakoto Yoshizawa
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2021 Volume Annual59 Issue Abstract Pages 279

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Abstract

Pulse wave velocity (PWV) of artery contains important information such as blood pressure and arterial stiffness. The aim of this study is to estimate PWV of arteries from the difference of pulse arrival time with plethysmogram at peripheral small region. However, it is difficult to calculate PWV by the ratio of distance and difference of pulse arrival time between two close points. Considering the stiffness parameter beta, the square of PWV at periphery is proportional to the peripheral blood pressure. In proposed method, PWV was estimated by correction of the difference of pulse arrival time at hand region using the characteristics between square of PWV and hand elevation. The results of verification experiments showed the estimated PWV had a close correlation to arterial PWV. Therefore it was suggested that PWV may be able to be estimated from the plethysmogram of the hand region.

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© 2021 Japanese Society for Medical and Biological Engineering
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