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Table 1 Lung volumes measured by multi-slice computer tomography

From: Respiratory compliance but not gas exchange correlates with changes in lung aeration after a recruitment maneuver: an experimental study in pigs with saline lavage lung injury

  Pre-recruitment maneuver Post-recruitment maneuver P-value fractional change (%)
Expiration     
VHYP (ml) 60 ± 21 67 ± 28 0.025 11.2 ± 10
VNORM (ml) 577 ± 142 649 ± 206 0.036 11.0 ± 12
VPOOR (ml) 406 ± 83 493 ± 112 0.017 21.7 ± 18
VNON (ml) 357 ± 53 275 ± 72 0.012 -23.3 ± 15
VTOT (ml) 1401 ± 136 1483 ± 175 0.025 5.8 ± 5
VGAS (ml) 629 ± 83 711 ± 133 0.012 13.1 ± 10
VTISS (ml) 838 ± 62 832 ± 60 0.263 -
Inspiration     
VHYP (ml) 109 ± 38 115 ± 42 0.093 -
VNORM (ml) 789 ± 140 889 ± 197 0.012 12.4 ± 12
VPOOR (ml) 397 ± 94 478 ± 124 0.017 20.9 ± 18
VNON (ml) 295 ± 54 232 ± 75 0.012 -22.3 ± 16
VTOT (ml) 1589 ± 139 1713 ± 150 0.012 7.9 ± 5
VGAS (ml) 838 ± 84 939 ± 128 0.012 12.5 ± 8
VTISS (ml) 819 ± 56 838 ± 64 0.263 -
  1. Data are reported as mean ± SD. VGAS, total lung gas volume; VHYP, hyperinflated lung volume; VNON, non-aereated lung volume; VNORM, normally aereated lung volume; VPOOR, poorly aerated lung volume; VTISS, total lung tissue volume; VTOT, total lung volume.