Fig. 2From: Progression of regional lung strain and heterogeneity in lung injury: assessing the evolution under spontaneous breathing and mechanical ventilationROI array maps of the regional volumetric strain. a Schematic showing the apical–basal and ventral–dorsal directions of array maps. b Regional strain in the SB-group at T1. c Regional strain in the MV-group at T1. d Regional strain in the SB-group at T3. e Regional strain in the MV-group at T3. Significant within-subject differences are denoted by * (p < 0.05)Back to article page