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Table 2 Lung volumes and weights quantified by CTa

From: Computed tomographic assessment of lung weights in trauma patients with early posttraumatic lung dysfunction

Parameter ALI Reference ventilated Reference spontaneous
Median Vlungb, ml 3,208 (2,574 to 4,289) 4,228 (3,701 to 4,621) 3,195 (2,670 to 4,918)
Median Vlung in womenb, ml 2,865 (2,413 to 3,293) 3,498 (2,957 to 3,948) 2779 (2,526 to 3,878)
Median Vlung in menb, ml 3,304 (2,562 to 4,513) 4,426 (3,801 to 4,760) 3363 (2,979 to 6,121)
Median Mlungc, g 1,088 (862 to 1,342) 893 (785 to 968)d 884 (724 to 986)d,e
Median Mlung in women, g 814 (748 to 1,250) 738 (664 to 765) 720 (620 to 824)
Median Mlung in men, g 1,119 (913 to 1,358) 902 (847 to 981) 928 (864 to 993)
Median Mhyperb, % 0 (0 to 3) 2 (0 to 4) 0 (0 to 4)
Median Mnormalb, % 55 (39 to 68) 88 (85 to 91) 85 (79 to 88)
Median Mpoorb, % 17 (14 to 23) 6 (6 to 10) 9 (7 to 17)
Median Mnonb, % 20 (11 to 34) 1 (1 to 2) 1 (1 to 2)
  1. aAll values are given as medians with interquartile ranges. ALI, patients with acute lung injury already at admission; reference ventilated, mechanically ventilated patients with normal lungs; reference spontaneous, spontaneously breathing patients with normal lungs; Vlung, total lung volume; Mlung, total lung mass; Mhyper, mass of hyperaerated lung compartment; Mnormal, mass of normally aerated lung compartment; Mpoor, mass of poorly aerated lung compartment; Mnon, mass of nonaerated lung compartment. The weights of differently aerated lung compartments were calculated as percentages of Mlung. Vlung and Mlung values were calculated for each sex separately as well as for all patients in a group to assess sex-specific differences. bBecause the degree of inspiration was not controlled during computed tomography, between-group comparison of Vlung and differently aerated lung compartments was omitted. cP < 0.001 for the Kruskal-Wallis test over all groups; dP < 0.001 versus ALI; eP = 0.74 versus reference ventilated.