方法采用5%牛磺胆酸钠逆行胆胰管注射建立大鼠ANP肝损害模型，90只大鼠，随机分成三组。
Methods The model of ANP was established in 90 rats by retrograde injection of 5% sodium taurocholate into biliopancreatic duct.
目的评价磁共振胆胰管造影(MRCP)对肝外胆管梗阻性疾病的临床诊断价值。
Objective to evaluate the clinical value of MR cholangiopancreatography (MRCP) in diagnosis of extrahepatic biliary obstructive disease.
目的：评价磁共振胆胰管成像在肝内外胆管梗阻中的临床应用。
Objective:To evaluate the diagnostic value of MR cholangiopancreatography (MRCP) on the obstruction of internal and external bile duct.
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