Parametric estimation of pulse arrival time: a robust approach to pulse wave velocity.

Details

Serval ID
serval:BIB_3742BC57CB48
Type
Article: article from journal or magazin.
Collection
Publications
Title
Parametric estimation of pulse arrival time: a robust approach to pulse wave velocity.
Journal
Physiological Measurement
Author(s)
Solà J., Vetter R., Renevey P., Chételat O., Sartori C., Rimoldi S.F.
ISSN
0967-3334
Publication state
Published
Issued date
2009
Volume
30
Number
7
Pages
603-615
Language
english
Notes
Publication types: Journal ArticlePublication Status: ppublish
Abstract
Pulse wave velocity (PWV) is a surrogate of arterial stiffness and represents a non-invasive marker of cardiovascular risk. The non-invasive measurement of PWV requires tracking the arrival time of pressure pulses recorded in vivo, commonly referred to as pulse arrival time (PAT). In the state of the art, PAT is estimated by identifying a characteristic point of the pressure pulse waveform. This paper demonstrates that for ambulatory scenarios, where signal-to-noise ratios are below 10 dB, the performance in terms of repeatability of PAT measurements through characteristic points identification degrades drastically. Hence, we introduce a novel family of PAT estimators based on the parametric modeling of the anacrotic phase of a pressure pulse. In particular, we propose a parametric PAT estimator (TANH) that depicts high correlation with the Complior(R) characteristic point D1 (CC = 0.99), increases noise robustness and reduces by a five-fold factor the number of heartbeats required to obtain reliable PAT measurements.
Keywords
Arteries/physiology, Blood Flow Velocity/physiology, Cardiovascular Diseases/etiology, Humans, Monte Carlo Method, Pulsatile Flow/physiology, Reproducibility of Results, Risk Factors
Pubmed
Web of science
Create date
09/02/2010 16:21
Last modification date
03/03/2018 16:04
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