Table 4.
Comparison of EUS-guided fine-needle aspiration biopsy outcomes
| Franseen needle (n=30), n (%) | Conventional end-cut type needle (n=30), n (%) | P-value | |
|---|---|---|---|
| Procedure | |||
| Trainee | 27 (90) | 24 (80) | 0.47 |
| Expert | 3 (10) | 6 (20) | |
| Technical success | 30 (100) | 30 (100) | 1 |
| Puncture route | |||
| Transgastric | 16 (53.3) | 16 (53.3) | 1 |
| Transduodenal | 14 (46.7) | 14 (46.7) | |
| Number of passes | |||
| Mean±SD | 2.1±0.4 | 3.2±0.8 | <0.001 |
| Range | 1-3 | 2-5 | |
| Diagnostic accuracy | 29 (96.7) | 28 (93.3) | 0.55 |
| Presence of desmoplastic fibrosis | 29 (96.7) | 12 (40) | <0.001 |
| Presence of venous invasion | 7 (23.3) | 0 | <0.01 |
| Presence of lymphatic invasion | 3 (10) | 0 | 0.05 |
| Presence of nerve invasion | 1 (3.3) | 0 | 0.33 |
| Amount of obtained tissue (mm2) | |||
| Mean | 2.24±1.37 | 0.43±0.33 | <0.001 |
| Median | 2.13 | 0.45 | <0.001 |
| Range | 0.70-6.71 | 0.04-1.23 | |
| Adverse events | 0 | 0 | 1 |
SD: Standard deviation