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) |