Role of endoscopic ultrasound in evaluation of patients with missed common bile duct stones

Table 3 Accuracy, sensitivity, and specificity of endoscopic ultrasound and magnetic resonance cholangiopancreatography in detecting choledocholithiasis

	Endoscopic retrograde cholangiopancreatography findings				Sensitivity	Specificity	PPV	NPV	Accuracy
	No (n = 23)		Yes (n = 67)
CBD stones detected by EUS	n	%	n	%
No	14	60.9	1	1.5	98.51	60.87	88.0	93.33	88.89
Yes	9	39.1	66	98.5
FEP value	43.464 (< 0.001)
MRCP stones	n	%	n	%
No	23	100.0	30	44.8
Yes	0	0.0	37	55.2	55.22	100.0	100.0	43.40	66.67
P value	21.569 (< 0.001)

PPV: Positive predictive value; NPV: Negative predictive value; CBD: Common bile duct; EUS: Endoscopic ultrasound; MRCP: Magnetic resonance cholangiopancreatography; ERCP: Endoscopic retrograde cholangiopancreatography.