Figure 4.
(a) Changes in lung ultrasound score, with the straight line depicting the high-tidal-volume ventilation group and the dotted line depicting the ultralow tidal ventilation group under ECMO support. (b) The lung ultrasound shows A lines (upper left panel) and typical B lines (upper right panel) in the anterior fields of the right hemithorax, with and without ECMO support, respectively. The lung ultrasound shows multiple B-lines with consolidation (lower panel) in the posterior fields of the right hemithorax of both groups; h: Hour.