DOUBLE HEADED PROBE FOR LOCAL PULSE WAVE VELOCITY ESTIMATION - A New Device for Hemodynamic Parameters Assessment

H. C. Pereira, J. B. Simoes, J. L. Malaquias, T. Pereira, V. Almeida, E. Borges, J. Cardoso, C. Correia

Abstract

The present work proposes a new device for local pulse wave velocity (PWV), by using an innovative configuration of a double piezoelectric (PZ) sensor probe. PWV is assessed in one single location and involves the determination of time delay, between the signals acquired simultaneously by two PZs, 23 mm apart. The double probe (DP) is characterized in a dedicated test bench system, where two main studies were carried out. In the first one, the impulse response (IR) for each PZ sensor is determined and evaluated through the deconvolution method. In the second one, DP time resolution is estimated from a set of time delay algorithms and compared with the reference values, obtained through the signals of two pressure sensors. Results demonstrate the effectiveness of the inferred IRs in deconvolution purposes and the possibility of measure higher PWV values (≈ 19m/s), through the DP, with an error less than 10%.

References

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Paper Citation


in Harvard Style

Pereira H., Simoes J., Malaquias J., Pereira T., Almeida V., Borges E., Cardoso J. and Correia C. (2011). DOUBLE HEADED PROBE FOR LOCAL PULSE WAVE VELOCITY ESTIMATION - A New Device for Hemodynamic Parameters Assessment . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011) ISBN 978-989-8425-37-9, pages 444-447. DOI: 10.5220/0003293704440447


in Bibtex Style

@conference{biodevices11,
author={H. C. Pereira and J. B. Simoes and J. L. Malaquias and T. Pereira and V. Almeida and E. Borges and J. Cardoso and C. Correia},
title={DOUBLE HEADED PROBE FOR LOCAL PULSE WAVE VELOCITY ESTIMATION - A New Device for Hemodynamic Parameters Assessment},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011)},
year={2011},
pages={444-447},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003293704440447},
isbn={978-989-8425-37-9},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011)
TI - DOUBLE HEADED PROBE FOR LOCAL PULSE WAVE VELOCITY ESTIMATION - A New Device for Hemodynamic Parameters Assessment
SN - 978-989-8425-37-9
AU - Pereira H.
AU - Simoes J.
AU - Malaquias J.
AU - Pereira T.
AU - Almeida V.
AU - Borges E.
AU - Cardoso J.
AU - Correia C.
PY - 2011
SP - 444
EP - 447
DO - 10.5220/0003293704440447