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Table 3 Lung volumes

From: Uneven distribution of ventilation in acute respiratory distress syndrome

Group Supine EELV or FRC (litres)
  SF6 CT
ARDS patients 1.2 ± 0.4 1.9 ± 0.8
Healthy subjects 1.7 ± 0.3 1.8 ± 0.3
  (78% of predicted) (80% of predicted)
  1. End-expiratory lung volume (EELV) in the acute respiratory distress syndrome (ARDS) patients and functional residual capacity (FRC) in the healthy subjects were measured by rebreathing of sulphur hexafluoride (SF6) and computed tomography (CT), respectively. Predicted normal FRC values are from [25].