AN ALTERNATIVE METHOD FOR MEASURING HUMAN RESPIRATORY IMPEDANCE

Robin De Keyser, Clara M. Ionescu

Abstract

The Forced Oscillation Technique (FOT) denotes a non-invasive lung function test which serves as a medical diagnostic tool to measure human respiratory impedance. The FOT principle is based on superimposing air pressure oscillations onto the normal breathing waves of the subject, measuring both air flow and air pressure at the mouth and analyzing the data with signal processing techniques which apply to linear systems. The motivation to eliminate the need for flow measurement arises from i) economic reasons, because measurement of air flow in this case requires the presence of an expensive component, the pneumotachograph, in the FOT device and ii) innovative aspects. The present work assessed the possibility that the requirement to measure flow could be eliminated if the transformation from excitation signal to measured pressure in the FOT device (given by the internal impedances of the device) is known. This conceptual solution was theoretically proven by analyzing the electrical circuit which models these transformations. Measurements were conceived and performed in order to estimate these quantities.

References

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Paper Citation


in Harvard Style

De Keyser R. and M. Ionescu C. (2012). AN ALTERNATIVE METHOD FOR MEASURING HUMAN RESPIRATORY IMPEDANCE . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012) ISBN 978-989-8425-91-1, pages 119-126. DOI: 10.5220/0003729601190126


in Bibtex Style

@conference{biodevices12,
author={Robin De Keyser and Clara M. Ionescu},
title={AN ALTERNATIVE METHOD FOR MEASURING HUMAN RESPIRATORY IMPEDANCE},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012)},
year={2012},
pages={119-126},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003729601190126},
isbn={978-989-8425-91-1},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2012)
TI - AN ALTERNATIVE METHOD FOR MEASURING HUMAN RESPIRATORY IMPEDANCE
SN - 978-989-8425-91-1
AU - De Keyser R.
AU - M. Ionescu C.
PY - 2012
SP - 119
EP - 126
DO - 10.5220/0003729601190126