Objective To evaluate the diagnostic value of extrahepatic bile duct obstructive disease by negtive CT cholangiopancreatography (N-CTCP) using multiple spiral CT (MSCT).

• 目的 评价多层螺旋CT(MSCT)阴性法胰胆管造影 (N -CTCP)对肝外胆管梗阻性疾病的诊断价值。