Table 2.
Tumor cell counts, crush artifact or necrotic changes, and sample size for each method
| TBB (BF: P260F) |
TBB (BF: 1 T260) |
TBNA | Core-needle (CT or US) |
|
|---|---|---|---|---|
| Sample number | 84 | 26 | 23 | 20 |
| Tumor cell counts | ||||
| <100 | 11 | 0 | 0 | 0 |
| 100≦, <1000 | 56 | 3 | 14 | 3 |
| 1000≦, <2000 | 14 | 3 | 0 | 5 |
| 2000< | 3 | 20 | 9 | 12 |
| Median | 559 | 6953 | 1968 | 6593 |
| Range | 30–3000 | 380–30,000 | 100–9000 | 100–37,500 |
| Crush artifact or necrotic change, % | ||||
| <5 | 15 | 17 | 12 | 14 |
| 5–50 | 39 | 6 | 8 | 4 |
| 50< | 30 | 3 | 3 | 2 |
| Diameter of biopsy sample, mm, mean (95% C.I.) | ||||
| Major axis | 1.3 (±0.1) | 3.2 (±0.9) | 1.6 (±0.4) | 6.3 (±1.7) |
| Minor axis | 1.0 (±0.1) | 2.2 (±0.6) | 1.3 (±0.4) | 1.1 (±0.8) |
TBB transbronchial biopsy, TBNA transbronchial needle aspiration