Figure 4.

Fractional changes in investigated parameters (means with confidence intervals). Cinf, maximum inflation compliance; Crs, static compliance of respiratory system; PaO₂, arterial partial oxygen pressure; Pplat, plateau pressure; Q_VA/Q_T, venous admixture; V_NON, nonaerated lung volume; V_NORM, normally aerated lung volume; V_POOR, poorly aerated lung volume; Vrec, recruitable volume at PEEP.