Table 4:
Short- and long-term CT evaluation of stenosis patients’ trachea
| In the S group | Pre-OP (n = 12) | Post-OP (n = 9) | Long-term (n = 6) |
|---|---|---|---|
| Location of stenosis, n (%) | |||
| Upper, mid, lower | 2 (16.7) | 1 (11.1) | 1 (16.7) |
| Mid, lower | 2 (16.7) | 1 (11.1) | |
| Mid | 2 (16.7) | 2 (22.2) | 1 (16.7) |
| Lower | 6 (50.0) | 5 (55.6) | 4 (66.7) |
| CT finding, mean (IQR) | |||
| Narrowest diameter (mm) | 2.8 (2.2–3.2) | 4.0 (3.2–4.7) | 8.8 (6.75–10.45) |
| Stenotic degree (%) | 39.3 (31.6–49.1) | 28.4 (18.3–41.3) | 12.5 (1.5–16.9) |
| Length of stenotic lesion (mm) | 14.0 (12.0–16.3) | 12.0 (10.0–16.0) | 14.0 (2.5–23.1) |
| SLR (%) | 32.0 (24.5–37.4) | 31.0 (23.0–36.0) | 24.8 (4.3–25.7) |
| DLR value (= diameter/SLR) | 7.2 (5.6–15.5) | 11.6 (7.8–12.4) | 30.7 (21.9–44.6) |
CT: computed tomography; DLR: diameter length ratio; IQR: interquartile range; post-OP: postoperative; pre-OP: preoperative; S: stenosis; SLR: stenotic length ratio.