Table 3 In- and expiratory cross sectional areas at different levels of the central airway

1 cm above aortic arch

0.83 → 0.32 (61 %)

2.21 → 0.63 (71 %)

1.66 → 0.67 (60 %)

0.81 → 0.26 (68 %)

0.84 → 0.19 (77 %)

Aortic arch

1.02 → 0.39 (62 %)

2.08 → 0.75 (64 %)

1.58 → 0.11 (93 %)

0.35 → 0.12 (66 %)

0.87 → 0.69 (21 %)

2 cm above carina

1.04 → 0.53 (49 %)

2.07 → 0.98 (53 %)

1.59 → 0.27 (83 %)

0.3 → 0.3 (0 %)

0.80 → 0.53 (34 %)

1 cm below carina left main bronchus

0.54 → 0.4 (26 %)

1.16 → 0.4 (66 %)

1.04 → 0.41 (61 %)

0.31 → 0.13 (58 %)

0.53 → 0.34 (36 %)

1 cm below carina right main bronchus

0.52 → 0.29 (44 %)

1.33 → 0.65 (51 %)

1.55 → 0.37 (76 %)

0.54 → 0.49 (9 %)

0.64 → 0.56 (13 %)