Methods: Livers of 150 patients were continuously scaned at the intrahepatic portal vein and hepatic vein phases after injecting contrast medium into superior mesenteric artery through catheter.

• 方法：150例病人，导管置入于肠系膜上动脉内，注入造影剂后门静脉期和肝静脉期连续扫描肝脏。