Fig. 3From: Dorsal recruitment with flow-controlled expiration (FLEX): an experimental study in mechanically ventilated lung-healthy and lung-injured pigsFractional tidal impedance variation for the healthy (a) and (b) and the injured lung (c) and (d). In general, the main part of the ventilation is located in the ventral area (66.7 ± 4.9%). However, during usage of FLEX a significant redistribution of ventilation from ventral to dorsal areas can be seen in the healthy (p = 0.002) as well as the injured lung (p < 0.001)Back to article page