Post-procedure contrast CT of the liver in arterial and portal venous phases of contrast enhancement appeared normal, confirming that the previous vascular hypoperfusion was induced by the calculus.

• 之后再行增强CT检查显示动脉期与门脉期的增强呈正常状态（如图5），因此证明之前的肝脏低灌注是由于结石引起的。