Table 3.
Diagnostic ability of ERCP tissue sampling and EUS-FNA for differentiating extrahepatic cholangiocarcinoma (ECC) from benign biliary disease.
| Sensitivity, % | Specificity, % | PPV, % | NPV, % | Accuracy, % | |
|---|---|---|---|---|---|
| Bile aspiration cytology | 60.0 (15/25) |
100 (29/29) |
100 (15/15) |
74.4 (29/39) |
81.5 (44/54) |
| Forceps biopsy | 75.0 (15/20) |
100 (13/13) |
100 (15/15) |
72.2 (13/18) |
84.8 (28/33) |
| ERCPTissue sampling | 76.0 (19/25) |
100 (29/29) |
100 (19/19) |
82.9 (29/35) |
88.9 (48/54) |
| EUS-FNA | 81.8 (9/11) |
87.5 (7/8) |
90 (9/10) |
77.8 (7/9) |
84.2 (16/19) |
Abbreviations: PPV, positive predictive value and NPV, negative predictive value. p value: Chi-square test.