Fig. 1.
Experimental timeline in rats ventilated with moderate tidal volume (VT) after hydrochloric acid (HCl) aspiration (top) and in previously healthy rats with ventilator-induced lung injury (VILI) by large VT ventilation (bottom). In rats with aspiration, imaging was performed without interrupting moderate VT ventilation. In healthy rats, high-volume ventilation was suspended, and VT was set at 12 ml/kg during each image acquisition, including baseline. PEEP = positive end-expiratory pressure.