Murata S, Itai Y, Asato M, Kobayashi H, Nakajima K, Eguchi N, Saida Y, Kuramoto K, Tohno E
Department of Radiology, Hospital of Tsukuba University, Japan.
Radiology. 1995 Nov;197(2):351-6. doi: 10.1148/radiology.197.2.7480676.
To evaluate the contribution of hepatic veins to the dual blood supply in the liver under temporary hepatic venous occlusion.
Selected hepatic veins in 23 patients with liver tumors were temporarily occluded with a balloon catheter. Computed tomography (CT) arteriography, CT during arterial portography (CTAP), or both were performed with a spiral technique with and without temporary occlusion of a hepatic vein.
After hepatic vein occlusion, a well-demarcated, wedge-shaped area of hypoattenuation was seen at CTAP and/or hyperattenuation was seen at CT arteriography in the following regions: left lobe (left hepatic vein), ventral part of the anterior segment and the medial segment except for the ventromedial part (middle hepatic vein), dorsal part of the anterior segment and the ventral part of the posterior segment (right hepatic vein), and dorsocaudal part of the right lobe (inferior right hepatic veins).
After hepatic venous occlusion, the portal veins become draining veins and the occluded area is supplied with arterial blood alone.
评估在暂时性肝静脉闭塞情况下肝静脉对肝脏双重血液供应的贡献。
用球囊导管暂时闭塞23例肝肿瘤患者选定的肝静脉。采用螺旋技术，在肝静脉暂时闭塞和未闭塞的情况下，进行计算机断层扫描（CT）动脉造影、动脉门静脉造影期间的CT（CTAP），或两者都进行。
肝静脉闭塞后，在CTAP上可见界限清楚的楔形低密度区，和/或在CT动脉造影上在以下区域可见高密度区：左叶（左肝静脉）、前段腹侧部分和除腹内侧部分外的内侧段（中肝静脉）、前段背侧部分和后段腹侧部分（右肝静脉）以及右叶背尾侧部分（右下肝静脉）。
肝静脉闭塞后，门静脉成为引流静脉，闭塞区域仅由动脉血供应。
