Table 2. Mean tidal variation (in % ±SD) in the various regions of interest.

Time Point	Ventral Lung		Dorsal Lung
	trauma	healthy	trauma	healthy
	ROI 1	ROI 2	ROI 3	ROI 4
0 h (n = 12)	30.9 ± 4.7	32.6 ±  4.1	17.0 ± 2.6	19.4 ± 2.9
p-value, (F-value, DF)	0.2738 (1.21, 1/140)		0.2241 (1.49, 1/140)
4 h (n = 11)	16.5 ± 7.9	37.4 ± 9.9	18.8 ± 6.6	27.2 ± 7.4
p-value, (F-value, DF)	<0.0001 (37.25, 1/140)		0.0070 (7.49, 1/140)
24 h (n = 11)	17.9 ± 12.0	37.3 ± 8.6	17.7 ± 6.9	27.1 ± 9.5
p-value, (F-value, DF)	<0.0001 (38.06, 1/140)		0.0070 (5.19, 1/140)
48 h (n = 11)	22.8 ± 11.7	34.5 ± 11.7	18.9 ± 6.8	23.8 ± 5.9
p-value, (F-value, DF)	0.0240 (5.21, 1/140)		0.3222 (0.99, 1/140)
72 h (n = 10)	27.5 ± 9.2	33.1 ± 5.7	18.8 ± 4.3	20.5 ± 5.1
p-value, (F-value, DF)	0.1761 (1.85, 1/140)		0.7859 (0.07, 1/140)