Fan-based device for non-invasive measurement of respiratory impedance: Identification, calibration and analysis

Oscar Javier Olarte Rodriguez, Robin De Keyser, Clara Ionescu

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The paper addresses the development and performance-analysis of a lung function device for non-invasive forced oscillatory technique (FOT). The applied identification methodology allows estimating the level of noise and the level of non-linearities generated by the device and correct their influence on the patient's excitation signal. The repeatability of the system is assessed under different experiments using respiratory extensions and a calibration structure. The device allows assessing the mechanical properties of the respiratory impedance in the frequency band 0.05–5 Hz. From clinical point of view, this low-frequency band has particular interest when lung's viscoelastic properties need to be assessed, especially when airway remodeling and structural changes occur.
Original languageEnglish
Pages (from-to)127-133
Number of pages7
JournalBiomedical Signal Processing and Control
Volume30
DOIs
Publication statusPublished - Sep 2016

Keywords

  • forced oscillations lung function device
  • non-parametric identification
  • orced oscillatory technique (FOT)

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