Reproducibility of Pulse Wave Analysis and Pulse Wave Velocity in Healthy Subjects

T. Pereira, I. Santos, T. Pereira, H. Santos, V. Almeida, H. Pereira, C. Correia, J. Cardoso

2014

Abstract

The hemodynamic parameters extracted from pulse pressure waveform, by pulse wave analysis (PWA) and pulse wave velocity (PWV) are strong independent predictors of cardiovascular morbidity. The aim of this study is to investigate the reproducibility of pulse pressure profile and arterial stiffness indicators, i.e., Augmentation Index (AIx), Subendocardial Viability Ratio (SEVR), maximum rate of pressure change (dP/dtmax), Ejection Time Index (ETI), as measured using a contactless optical system. Reproducibility was evaluated in 13 healthy subjects by two senior operators (‘A’ and ‘B’) that acquired signals in alternate order (ABAB or BABA). The PWV result showed a good inter and intra-operator reproducibility. The mean difference between the two operators is 0.1570 m/s with a SD of 0.8160 m/s, this difference represents approximately 3.49% of the arithmetic average of the means obtained by each operator per trial. Between trials, differences of less than 8% of the mean PWV value for each operator were obtained. PWA repeatability results are considered high for HR, strong for Aix and moderate for dP/dtmax. The newly developed optical system showed good reproducibility as evaluated by both inter-operator and intra-operator methods.

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Paper Citation


in Harvard Style

Pereira T., Santos I., Pereira T., Santos H., Almeida V., Pereira H., Correia C. and Cardoso J. (2014). Reproducibility of Pulse Wave Analysis and Pulse Wave Velocity in Healthy Subjects . In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2014) ISBN 978-989-758-011-6, pages 221-228. DOI: 10.5220/0004802502210228


in Bibtex Style

@conference{biosignals14,
author={T. Pereira and I. Santos and T. Pereira and H. Santos and V. Almeida and H. Pereira and C. Correia and J. Cardoso},
title={Reproducibility of Pulse Wave Analysis and Pulse Wave Velocity in Healthy Subjects},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2014)},
year={2014},
pages={221-228},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004802502210228},
isbn={978-989-758-011-6},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2014)
TI - Reproducibility of Pulse Wave Analysis and Pulse Wave Velocity in Healthy Subjects
SN - 978-989-758-011-6
AU - Pereira T.
AU - Santos I.
AU - Pereira T.
AU - Santos H.
AU - Almeida V.
AU - Pereira H.
AU - Correia C.
AU - Cardoso J.
PY - 2014
SP - 221
EP - 228
DO - 10.5220/0004802502210228