Table 3 Lung and lobe volumes relative to the total lung volume in supine and standing positions.
Proportional volumes of each lung and each lobe relative to the total lung volume, % | p value | ||
|---|---|---|---|
Supine | Standing | Supine vs. standing | |
Bilateral lungs | 100 (100–100) | 100 (100–100) | |
Right lung | 56.3 (51.0–60.6) | 56.3 (50.9–59.1) | 0.5155 |
Right upper lobe | 23.5 (20.9–28.3) | 23.4 (21.1–26.8) | 0.5749 |
Right middle lobe | 14.5 (11.7–17.3) | 14.1 (10.8–16.1) | < 0.0001 |
Right lower lobe | 17.6 (14.4–20.2) | 18.2 (15.0–19.9) | 0.0005 |
Left lung | 43.7 (39.4–49.0) | 43.7 (40.9–49.1) | 0.5155 |
Left upper lobe | 26.5 (25.3–30.8) | 26.0 (25.0–30.2) | 0.0028 |
Left lower lobe | 16.6 (14.9–19.0) | 17.7 (16.0–19.4) | 0.0005 |
