COMPUTER AIDED LUNG SOUND ANALYSIS - A Preliminary Study to Assess its Potential as a New Outcome Measure for Respiratory Therapy

Alda Marques, Anne Bruton, Anna Barney

Abstract

A barrier to assess the relative effectiveness of respiratory therapies has been insufficient accurate, reliable, and sensitive outcome measures. Lung sounds provide useful information for assessing and monitoring respiratory patients. However, standard auscultation is too subjective to allow them to be used as an outcome measure. In this paper, Computer Aided Lung Sound Analysis (CALSA) characterising crackles’ Initial Deflection Width (IDW) and Two Cycle Deflection (2CD) is proposed as a potential objective, non-invasive, bedside outcome measure to assess the response to alveolar recruitment and airway clearance interventions. A preliminary ‘repeated measures’ experimental study was conducted. Seventeen participants with cystic fibrosis were recruited from out-patient clinics. Demographic, anthropometric and lung sound data were collected. The intra-subject reliability of crackles’ IDW and 2CD was found to be ‘good’ to ‘excellent’, estimated by the Analysis of Variance, Intraclass Correlation Coefficient, Bland and Altman 95% limits of agreement and Smallest Real Difference. It is concluded that crackle IDW and 2CD detected by CALSA are reliable and stable measures. In future, CALSA may be useful for assessing and monitoring respiratory interventions in clinical settings.

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Paper Citation


in Harvard Style

Marques A., Bruton A. and Barney A. (2009). COMPUTER AIDED LUNG SOUND ANALYSIS - A Preliminary Study to Assess its Potential as a New Outcome Measure for Respiratory Therapy . In Proceedings of the International Conference on Health Informatics - Volume 1: HEALTHINF, (BIOSTEC 2009) ISBN 978-989-8111-63-0, pages 251-256. DOI: 10.5220/0001547002510256


in Bibtex Style

@conference{healthinf09,
author={Alda Marques and Anne Bruton and Anna Barney},
title={COMPUTER AIDED LUNG SOUND ANALYSIS - A Preliminary Study to Assess its Potential as a New Outcome Measure for Respiratory Therapy },
booktitle={Proceedings of the International Conference on Health Informatics - Volume 1: HEALTHINF, (BIOSTEC 2009)},
year={2009},
pages={251-256},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001547002510256},
isbn={978-989-8111-63-0},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Health Informatics - Volume 1: HEALTHINF, (BIOSTEC 2009)
TI - COMPUTER AIDED LUNG SOUND ANALYSIS - A Preliminary Study to Assess its Potential as a New Outcome Measure for Respiratory Therapy
SN - 978-989-8111-63-0
AU - Marques A.
AU - Bruton A.
AU - Barney A.
PY - 2009
SP - 251
EP - 256
DO - 10.5220/0001547002510256