Table 6.

The diagnostic performance of contrast-enhanced endoscopic ultrasound with qualitative and quantitative evaluations compared with qualitative evaluation.

	Sensitivity (95% CI)	Specificity (95% CI)	PPV (95% CI)	NPV (95% CI)	Accuracy (95% CI)
CE-EUS qualitative evaluation (%)	61 (44–75)	72 (54–85)	71 (53–85)	62 (45–76)	66 (54–77)
CE-EUS combined evaluation (%)	94 (80–98)	69 (51–83)	78 (62–88)	91 (72–97)	82 (71–90) †

PPV: positive predictive value; NPV: negative predictive value; CE-EUS: contrast enhanced endoscopic ultrasound; CE-EUS combined analysis: qualitative and quantitative evaluations of CE-EUS; † Accuracy of CE-EUS combined evaluation was significantly different (p < 0.05) from that of CE-EUS qualitative evaluation.