Flow–volume loop analysis

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Flow–volume loops. A. Normal flow–volume loop

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Presentation transcript:

Flow–volume loop analysis Flow–volume loop analysis. a) Example of flow traces selected for computerised analysis. Flow–volume loop analysis. a) Example of flow traces selected for computerised analysis. The arrows indicate breaths that were excluded from analysis (sighs). b) Airflow obstruction gives a concave flow–volume loop and lower tidal expiratory flow at 50% of expired volume (TEF50)/peak tidal expiratory flow (PTEF) ratio. Mariann H. Bentsen et al. ERJ Open Res 2018;4:00099-2017 ©2018 by European Respiratory Society