Bland-Altman plots with exhaled VT difference plotted against the mean (displayed and pneumotachograph-measured) with and without sensor for method circuit compliance compensation off (calculated VT). Bland-Altman plots with exhaled VT difference plotted against the mean (displayed and pneumotachograph-measured) with and without sensor for method circuit compliance compensation off (calculated VT). Center lines denote mean difference, and outside lines show ±2 SD. A: healthy lung model. B: injured/recruited lung model. A Cecilia Mendiondo Luedloff et al. Respir Care 2016;61:1605-1612 (c) 2012 by Daedalus Enterprises, Inc.