1. objective: The features of indirect portography DSA and Light Speed 16 Multiple Slice spiral-CT portography (SCTP) in portography imaging were comparatively studied.
   目的:探讨间接门脉DSA与16排多层螺旋CT门脉造影(SCTP)的门脉成像差异。
2. Objective To evaluate the value of spiral CT portography (SCTP) before liver or biliary duct or pancreas surgery.
   目的:探讨螺旋CT门静脉造影(SCTP)在肝胆胰疾病术前评估中的价值。

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