Table 2.
Comparison of the specimens obtained by two needles.
| Group A (N = 51 specimens from 50 patients) |
Group B (N = 36 specimens from 36 patients) |
P value | |
|---|---|---|---|
| Targeted area in the pancreas | |||
| head | 21 | 19 | |
| body | 18 | 10 | |
| tail | 6 | 4 | |
| uncinate process | 6 | 3 | 0.744 |
| Number of passes | |||
| median (IQR) | 2 (2-2) | 2 (2-2) | 0.247 |
| Adequate histological specimen | 50/51 (98%) | 36/36 (100%) | 0.667 |
| Tissue sample area, mm2 | |||
| median (IQR) | 4.07 (1.83-6.34) | 1.31(0.38-3.12) | <0.0001 |
| Sensitivity | 95.3% | 88.2% | 0.233 |
| Specificity | 100% | 100% | 1 |
| Accuracy for cancer | 96.1% | 88.9% | 0.190 |