Operating characteristics in diagnosing pancreatic solid malignant lesions in the two groups (<i>n</i> = 163).

CH-EUS, contrast-enhanced harmonic endoscopic ultrasonography; EUS, endoscopic ultrasonography group; AUC, area under receiver operating characteristic curve; PPV, positive predictive value; NPV, negative predictive value; 95% CI, 95% confidence interval. *Suspicious cytology considered as diagnostic of malignancy. #Atypical/suspicious cytology considered as a diagnostic of malignancy. Operating characteristics in diagnosing pancreatic solid malignant lesions in the two groups (n = 163).