Fig. 1From: Noninvasive assessment of airflows by electrical impedance tomography in intubated hypoxemic patients: an exploratory studyAirflow waveforms measured by spirometer (red line) and electrical impedance tomography (EIT) (blue line) in two representative patients during pressure support ventilation (left) and volume-controlled ventilation (right). Note the correspondence between peak values by the two methods, with only modest underestimation by EITBack to article page