All measurements were made on expiratory scans using the centerline function of each isolated treated or contralateral normal mainstem bronchus in Mimics. (A and B) The centerline function measures DH (A) and A2 (B) every 0.1 to 1.0 mm along the entire segment of the isolated model (in this case, the mainstem bronchus). Data are means ± SD. The n listed under each mean is the number of measurements performed on each bronchus by the centerline function.
| Time after operation | Patient 1 | Patient 2 | Patient 3 | |||
| Treated side | Normal side | Treated left side | Treated right side | Treated side | Normal side | |
| (A) Airway DH (mm) | ||||||
| Preoperative | 1.7 ± 1.3 n = 28 | 3.2 ± 0.4 n = 7 | 2.2 ± 1.0 n = 20 | 4.0 ± 0.6 n = 11 | 1.7 ± 1.3 n = 19 | 4.0 ± 1.2 n = 18 |
| 1 month | 2.5 ± 0.4* n = 28 | 2.9 ± 0.4 n = 7 | 4.8 ± 0.5* n = 20 | 5.4 ± 0.6* n = 11 | 3.6 ± 1.2* n = 19 | 3.7 ± 1.1 n = 18 |
| 3 months | 4.6 ± 0.3 n = 17 | 4.4 ± 0.4 n = 9 | — | — | 4.0 ± 0.1 n = 7 | 4.5 ± 0.4 n = 15 |
| 6 months | 3.8 ± 0.4 n = 22 | 3.6 ± 0.5 n = 7 | — | — | — | — |
| 12 months | 3.5 ± 0.5 n = 20 | 3.9 ± 0.5 n = 10 | — | — | — | — |
| 30 months | 4.0 ± 0.9# n = 20 | 4.5 ± 1.2 n = 10 | — | — | — | — |
| (B) Airway A2 (mm) | ||||||
| Preoperative | 4.7 ± 4.2 n = 28 | 9.8 ± 2.2 n = 7 | 9.9 ± 8.3 n = 20 | 20.3 ± 2.6 n = 11 | 4.2 ± 4.1 n = 19 | 15.7 ± 6.4 n = 9 |
| 1 month | 6.9 ± 0.8* n = 28 | 8.0 ± 2.1 n = 7 | 21.8 ± 3.1* n = 20 | 30.8 ± 6.0* n = 11 | 13.9 ± 7.0* n = 19 | 14.1 ± 6.4 n = 18 |
| 3 months | 17.5 ± 2.1 n = 17 | 16.5 ± 3.4 n = 9 | — | — | 14.9 ± 1.0 n = 7 | 22.0 ± 5.3 n = 15 |
| 6 months | 12.1 ± 2.9 n = 22 | 11.4 ± 3.2 n = 7 | — | — | — | — |
| 12 months | 10.9 ± 2.4 n = 20 | 11.6 ± 3.9 n = 10 | — | — | — | — |
| 30 months Postoperative | 15.0 ± 6.8# n = 20 | 23.1 ± 11.0 n = 10 | — | — | — | — |
*P < 0.01 versus preoperative.
#P < 0.01 versus 1 month, Student’s t test (paired, two-sided, α = 0.05).