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Both endoscopic ultrasound (EUS) and magnetic resonance cholangiopancreatography (MRCP) are used for the diagnosis of choledocholithiasis (CDL). Previous studies have shown conflicting results regarding the optimal diagnostic strategy for suspected CDL; hence, this meta-analysis was conducted.A comprehensive search of literature from 1990 till April 2022 was done of three databases for studies comparing EUS and MRCP to diagnose CDL.A total of 12 studies were identified. The pooled sensitivity and specificity for EUS were 0.96 [95% confidence interval (CI) 0.92-0.98], and 0.92 (95% CI 0.85-0.96), respectively. The pooled sensitivity and specificity for MRCP were 0.85 (95% CI 0.78-0.90) and 0.90 (95% CI 0.79-0.96), respectively. EUS had a higher relative sensitivity [Relative risk (RR) 1.12, 95% CI 1.05-1.19], a higher diagnostic accuracy (Odds ratio 1.98, 95% CI 1.35-2.90) but comparable specificity (RR 1.02, 95% CI 0.96-1.08) with MRCP.There is little difference concerning specificity, although EUS likely provides a higher sensitivity and accuracy for diagnosing CDL, compared to MRCP. |
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