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.
