该研究目的是评估暂时闭塞肝静脉后肝癌及其周围肝实质的血流动力学改变。 21例结节型肝癌病人使用螺旋CT行CT动脉造影(CTA),共检出28个肿瘤。将病人分成A、B两组:A组(11例)在肝固有动脉和左或右肝动脉内注射对比剂,B组(10例)在邻近HCC的亚肝段动脉内注药。动脉内注射对比剂持续30s,总量6～75ml。准直线束7mm,进床速度7mm/s(螺距1)。注药后10s开始行常规CTA和以球囊行肝静脉闭塞下的CTA以 The purpose of this study was to assess the hemodynamic changes in liver parenchyma and peripheral hepatic parenchyma following temporary occlusion of hepatic veins. Twenty-one patients with nodular liver cancer underwent CT angiography (CTA) using spiral CT. A total of 28 tumors were detected. The patients were divided into A and B groups: Group A (11 cases) injected contrast medium in the hepatic artery and left or right hepatic artery, and group B (10 cases) injected intra-arterially in the adjacent liver. Intra-arterial injection of contrast agent continued for 30s, totaling 6-75 ml. Quasi-linear beam 7mm, bed speed 7mm/s (pitch 1). 10 minutes after injection, conventional CTA and CTA with balloon occlusion