Figure 4.
Histological comparison of a rats receiving Volume Cycled Ventilation (VC) vs. airway pressure release ventilation (APRV). The VC animal exhibits hallmarks of ARDS, including alveolar flooding (stars), fibrinous deposits in the air compartment (arrowheads) and high cellularity (between arrows). The APRV animal shows patent alveoli with notable preservation of nearly normal histology.