OPTICAL METHODS FOR LOCAL PULSE WAVE VELOCITY ASSESSMENT

T. Pereira, M. Cabeleira, P. Matos, E. Borges, V. Almeida, J. Cardoso, C. Correia, H. C. Pereira

Abstract

Pulse wave velocity (PWV) is a clinically interesting parameter associated to cardiac risk due to arterial stiffness, generally evaluated by the time that the pressure wave spends to travel between two arbitrary points. Optic sensors are an attractive instrumental solution in this kind of time assessment applications due to their truly non-contact operation capability, which ensures an interference free measurement. On the other hand, they can pose different challenges to the designer, mostly related to the features of the signals they produce and to the associated signal processing burden required to extract error free, reliable information. In this work we evaluate two prototype optical probes dedicated to pulse transit time (PTT) evaluation as well as three algorithms for its assessment. Although the tests were carried out at the test bench, where “well behaved” signals can be obtained, the transition to a probe for use in humans is also considered. Results demonstrated the possibility of measuring pulse transit times as short as 1 ms with less than 1% error.

References

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Paper Citation


in Harvard Style

Pereira T., Cabeleira M., Matos P., Borges E., Almeida V., Cardoso J., Correia C. and C. Pereira H. (2011). OPTICAL METHODS FOR LOCAL PULSE WAVE VELOCITY ASSESSMENT . In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2011) ISBN 978-989-8425-35-5, pages 74-81. DOI: 10.5220/0003166800740081


in Bibtex Style

@conference{biosignals11,
author={T. Pereira and M. Cabeleira and P. Matos and E. Borges and V. Almeida and J. Cardoso and C. Correia and H. C. Pereira},
title={OPTICAL METHODS FOR LOCAL PULSE WAVE VELOCITY ASSESSMENT},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2011)},
year={2011},
pages={74-81},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003166800740081},
isbn={978-989-8425-35-5},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2011)
TI - OPTICAL METHODS FOR LOCAL PULSE WAVE VELOCITY ASSESSMENT
SN - 978-989-8425-35-5
AU - Pereira T.
AU - Cabeleira M.
AU - Matos P.
AU - Borges E.
AU - Almeida V.
AU - Cardoso J.
AU - Correia C.
AU - C. Pereira H.
PY - 2011
SP - 74
EP - 81
DO - 10.5220/0003166800740081