Quantitative analysis for inspiratory CT (A) and paired inspiratory and expiratory CT (B) among patients with and without airway dilatation
| A | |||
| Airway dilatation− n=10 | Airway dilatation+ n=14 | p-value | |
| CT-TLV/pred TLC, % | 42.0 (21.3–58.9) | 69.7 (56.7–97.0) | 0.009 |
| LAV−950%, % | 15.3 (5.7–25.1) | 29.3 (15.1–41.7) | 0.050 |
| B | |||
| Airway dilatation− n=7 | Airway dilatation+ n=10 | p-value | |
| LAV−856%, % | 46.3 (0.6–57.2) | 66.5 (54.1–72.6) | 0.036 |
| fSAD, % | 10.0 (0.2–33.9) | 34.7 (28.3–36.4) | 0.057 |
CT-TLV: total lung capacity calculated on inspiratory CT; pred TLC: predicted total lung capacity; LAV−950%: low attenuation volume <−950 Hounsfield units (HU) at end inspiration; LAV−856%: low attenuation volume <−856 HU at end expiration; fSAD: functional small airway disease. All values are expressed as median (interquartile range).