TABLE 2.
Comparison of initial computed tomography (CT) and follow-up CT between patients with and without pulmonary fibrosis
| Patients without fibrosis (n=45) | Patients with fibrosis on initial CT (n=5) | Patients with fibrosis on final CT (n=11) | Patients with fibrosis on initial or on follow-up CT (n=16) | |
|---|---|---|---|---|
| Initial CT findings | ||||
| Total extent (%) | 45.0 (23.0–73.0) | 65.0 (50.0–70.0) | 40.0 (14.0–59.0) | 47.5 (17.3–68.5) |
| Crazy paving (%) | 40.0 (23.0–63.0) | 27.5 (13.5–55.2) | 40.0 (12.7–50.8) | 37.2 (12.6–56.7) |
| Reticular opacities (%) | 0 (0–0) | 0 (0–0) | 0 (0–0.9)* | 0 (0–0.49)* |
| Ground-glass opacification (%) | 2.25 (0–4.65) | 9.30 (3.50–9.75) | 0.90 (0–4.75) | 2.28 (0–6.9) |
| Condensations (%) | 0 (0–3.75) | 0 (0–1.50) | 0 (0–0) | 0 (0–0) |
| Honeycomb (%) | 0 (0–0) | 0 (0–0) | 0 (0–0) | 0 (0–0) |
| Emphysema | 13 (29%) | 3 (60%) | 2 (18%) | 5 (31%) |
| Adenopathy | 7 (16%) | 0 (0%) | 1 (9.1%) | 1 (6.2%) |
| Final CT findings | ||||
| Total extent (%) | 10.0 (5.00–28.0) | 10.0 (5.00–30.0) | 50.0 (34.0–79.0)* | 39.0 (19.5–78.5)* |
| Crazy paving (%) | 5.00 (0–24.7) | 0 (0–1.50) | 22.5 (3.90–64.5) | 7.5 (0–41.4) |
| Reticular opacities (%) | 0 (0–0) | 0 (0–9.00) | 0 (0–15.8)* | 0 (0–13.9)* |
| Ground-glass opacification (%) | 2.00 (0–4.65) | 2.50 (1.00–4.75) | 6.00 (1.74–10.6)* | 4.6 (1.1–8.3) |
| Condensations (%) | 0 (0–0) | 2.50 (0–4.75) | 0 (0–0) | 0 (0–2.6) |
| Honeycomb (%) | 0 (0–0) | 0 (0–0) | 0 (0–0) | 0 (0–0) |
| Emphysema | 13 (29%) | 2 (40%) | 3 (27%) | 5 (31%) |
| Adenopathy | 2 (4.4%) | 0 (0%) | 1 (9.1%) | 1 (6.2%) |
| Follow-up duration, years | 3.96 (2.00–6.88) | 3.60 (2.83–6.86) | 3.55 (2.88–6.65) | 3.60 (2.83–6.86) |
Data are expressed as median (interquartile range) or n (%). *: p<0.05 compared with the column of 45 patients without fibrosis. Bold indicates significant values.