Sensitivity, Specificity, PPV, NPV, and Accuracy in Different Staging Modalities Assessing Nodal (N) Metastases
| Staging method | Sensitivity | Specificity | PPV | NPV | Accuracy |
|---|---|---|---|---|---|
| EUS* | 18/26 (69) | 13/17 (76) | 18/22 (82) | 13/21 (62) | 31/43 (72) |
| CT | 17/39 (44) | 19/21 (90) | 17/19 (89) | 19/41 (46) | 36/60 (60) |
| PET | 22/40 (55) | 15/21 (71) | 22/28 (79) | 15/33 (45) | 37/61 (61) |
↵* Only patients with successfully performed EUS.
PPV = positive predictive value; NPV = negative predictive value.
Values in parentheses are percentage. P values are not significant.