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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.