Objective To assess the diagnostic value of Common bile duct stone(CBDS) by Magnetic resonance cholangiopancreatography(MRCP) and Endoscopic retrograde cholangiopancreatography(ERCP) before LC.

• 目的评价磁共振成像胆胰管造影(MRCP)和内窥镜逆行胆胰管造影(ERCP)在腹腔镜胆囊切除术(LC)前检测胆总管结石的诊断价值。