EUS for detection of choledocholithiasis

How does EUS compare with endoscopic retrograde cholangiopancreatography (ERCP), magnetic resonance cholangiopancreatography (MRCP), and abdominal ultrasound for detection of choledocholithiasis? 

ERCP, MRCP, and EUS have comparable sensitivity and specificity for choledocholithiasis (85%-95%, 92%-98%, respectively). Although the overall accuracy of EUS is comparable to MRCP for choledocholithiasis, EUS is superior for stones smaller than 5 mm and intrasphincteric stones. All are superior to abdominal ultrasound, which has poor sensitivity of 20% to 55% and 83% specificity.

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