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Diagnostic Performance of Brush Biliary Cytology for Diagnosing Malignant Biliary Stricture
| Brush cytology | Brush cytology with negative pressure | |
|---|---|---|
| sensitivity | 40.7 % | 74.2 % |
| specificity | 100.0 % | 100 % |
| PPV | 100.0% | 100% |
| NPV | 51.5% | 61.9% |
| Accuracy |
PPV, Positive Predictive Value; NPV, Negative Predictive value
