The Quark i2m is a forced oscillation system for measuring total respiratory system impedance. It consists of a simple and fast (8 seconds) manoeuvre performed with the patient breathing normally into a measuring device. The Quark i2m can be used with non-cooperative subjects, making it the perfect solution for any pediatric department. An imperceptible, low intensity and high frequency (4-48 Hz) pressure signal is applied while breathing and after a few seconds the software provides total respiratory impedance, including the two components: resistance (R) and reactance (X).
Forced Oscillations Technique, the reference method for respiratory mechanics in children