Table 2. Average of daily ultrasound measurements over time in the first week of MV.

	Day1 (n = 31)	Day2 (n = 28)	Day3 (n = 25)	Day4 (n = 23)	Day5 (n = 20)	Day6 (n = 17)	Day7 (n = 15)
End-inspiratory thickness (mm)	1.92±0.48	1.75±0.41	1.74±0.44	1.67±0.46	1.66±0.42	1.69±0.39	1.69±0.45
End-expiratory thickness (mm)	1.52±0.38	1.5±0.35	1.52±0.39	1.46±0.4	1.45±0.37	1.49±0.36	1.49±0.42
Diaphragmatic thickening fraction (%)	25.8±3.3	16.4±4.2	14.5±2.6	14.3±2.9	14.3±2.6	14.2±2.8	13.5±3.7