Airwave oscillometry (AOS: Tremoflo, Thorasys, Montreal) is a modern forced oscillation technique (FOT) using a vibrating mesh to superimpose forced oscillations of sound waves on top of normal tidal breathing to measure respiratory impedance as lung resistance (R) and reactance (X), whereas the older impulse oscillometry (IOS: Jaeger Masterscreen, Carefusion Hoechberg, Germany) uses a loudspeaker source. Airwave oscillometry measurements strongly correlate with IOS1,2 and quantify the degree of small airways dysfunction (SAD) as either peripheral airway resistance in terms of heterogeneity (AOS: R5-R19; IOS: R5-R20) or peripheral reactance (ie, compliance) as area under the reactance curve (AX).
Airwave oscillometry and patient-reported outcomes in persistent asthma
May 6, 2020 / in Scientific articles / by Eve-Gabrielle Bissonnette
Other resources of interest
Discover the new flexible support arm for your tremoflo
Introducing our most recent accessory for the tremoflo C-100, a flexible support arm that is easy to install with your tremoflo device to let you operate hands-free at a distance when performing [...]
Monitoring lung transplant patients with Airwave Oscillometry [Webinar]
Are you aware that Airwave Oscillometry has been shown to be more sensitive than spirometry in detecting changes in lung function related to lung transplants results?
Home-based Forced Oscillation Technique Day-to-Day Variability in Pediatric Asthma
An approach to better characterize asthma exacerbations & detect changes in asthma control