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Comparison of Different Biopsy Needle Designs to the Bard Needle.
| Needle | Cannula | Number of Tests | Mean (mm) | Mean (°) | Difference (P Value) |
|---|---|---|---|---|---|
| Bard | Bard | 8 | 0.9 | 1.9 | Reference |
| Lancet point | Vet point, 12° | 9 | 0.9 | 0.9 | .671/.064 |
| Trocar | Vet point, 12° | 18 | 0.3 | 0.3 | .033/.002 |
| Trocar | Vet point, 15° | 17 | 0.2 | 0.1 | .013/.002 |
| Trocar | Vet point, 20° | 18 | 0.2 | 0.2 | .000/.000 |
