Accumulation in the capillaries is negligible, thus the washout also occurs rapidly after the arterial phase, giving the pancreas a darkened appearance in contrast to the adjacent liver after 2 min.

• 造影剂在毛细管道中的集聚是可以忽略的，因而在动脉相后也会发生造影剂的快速消退，在2分钟后胰腺与相邻的肝脏相比呈现出相对的低回声改变。