• Conf Proc IEEE Eng Med Biol Soc · Jan 2014

    Automatic lung tidal volumes estimation from tracheal sounds.

    • Guangwei Chen, Ildefonso de la Cruz, and Esther Rodriguez-Villegas.
    • Conf Proc IEEE Eng Med Biol Soc. 2014 Jan 1; 2014: 1497-500.

    AbstractThis paper presents a method to automatically estimate lung tidal volumes from the acoustic signals generated in the respiratory track. The signal is measured with an acoustic based sensor placed in the suprasternal notch. The method does not require any previous knowledge or modelling of the individual respiratory track, and relies on just one calibration parameter. The proposed algorithm is tested on 316 respiratory phases obtained from 4 volunteers. The subjects were simultaneously wearing a Wright respirometer which was used as a gold standard for comparison. Agreement between the two methods was assessed with Bland-Altman techniques. The results show the potential the technique has, integrated with a small acoustic sensor, for less-intrusive and even remote and/or continuous monitoring of lung tidal volumes.

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