Table 3.
Three-dimensional CT analysis of the airway morphology.
| Third-generation bronchi | Fourth-generation bronchi | Fifth-generation bronchi | Sixth-generation bronchi | |
|---|---|---|---|---|
| Ai, mm2 | 28.7 (14.2–49.7) | 7.31 (4.27–18.4) | 4.82 (1.88–10.9) | 2.90 (1.13–6.53) |
| Ai/BSA, mm2/m2 | 19.6 (8.75–31.0) | 4.89 (2.57–11.0) | 3.02 (1.09–6.52) | 1.76 (0.66–4.08) |
| WA, mm2 | 36.3 (28.2–44.3) | 29.2 (16.4–36.3) | 25.0 (21.0–33.6) | 22.0 (17.9–31.7) |
| WA/BSA, mm2/m2 | 23.1 (17.3–30.1) | 18.8 (10.6–25.4) | 16.0 (12.5–20.5) | 14.1 (11.4–19.8) |
Data are expressed as the median (range). Ai, airway inner luminal area; WA, wall area; BSA, body surface area.