Extrahepatic arterial supply to the liver: Observation with a unified CT and angiography system during temporary balloon occlusion of the proper hepatic artery
Extrahepatic arterial supply to the liver: Observation with a unified CT and angiography system during temporary balloon occlusion of the proper hepatic artery
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DOI：
10.1148/radiology.209.1.9769822
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发表时间：
1998-10-01
期刊：
影响因子：
19.7
通讯作者：
Itai, Y
中科院分区：
文献类型：
--
作者：
Takeuchi, Y;Arai, Y;Itai, Y
目的：评价潜在肝外动脉向肝脏供应的途径。材料与方法：23例肝脏肿瘤患者在肝固有动脉临时球囊闭塞前后行肝外动脉CT造影术。评估右膈下动脉（RIPA）、左膈下动脉（LIPA）、肠系膜上动脉（SMA）、腹腔轴、胃左动脉（LGA）。结果：在肝固有动脉暂时球囊闭塞时，23例患者中有22例（96%）立即出现肝外动脉供应。20例患者中有17例（85%）的肝脏由RIPA供应，6例中有5例（83%）由LIPA供应，16例中有8例（50%）由SMA供应，10例中有2例（20%）由腹腔轴供应，6例中有1例（17%）由LGA供应。肝外动脉供应的增强区与附近肿瘤的存在与否没有明显的关系。结论：肝固有动脉暂时性球囊闭塞时，大部分患者肝外动脉供血明显。这一发现表明，当考虑肝肿瘤血管造影介入治疗时，需要考虑肝外动脉供应。
PURPOSE: To evaluate routes of potential extrahepatic arterial supply to the liver.MATERIALS AND METHODS: Twenty-three patients with liver tumors underwent computed tomographic (CT) arteriography of extrahepatic arteries before and after temporary balloon occlusion of the proper hepatic artery. The right inferior phrenic artery (RIPA), left inferior phrenic artery (LIPA), superior mesenteric artery (SMA), celiac axis, and left gastric artery (LGA) were evaluated.RESULTS: During temporary balloon occlusion of the proper hepatic artery, extrahepatic arterial supply was immediately evident in 22 of 23 patients (96%). The liver was supplied by the RIPA in 17 of 20 patients (85%), by the LIPA in five of six (83%), by the SMA in eight of 16 (50%), by the celiac axis in two of 10 (20%), and by the LGA in one of six (17%). There was no apparent relationship between the enhanced zones supplied by extrahepatic arteries and the presence or absence of nearby tumors.CONCLUSION: Extrahepatic arterial supply to the liver was readily evident in a large proportion of patients during temporary balloon occlusion of the proper hepatic artery. This finding suggests a need for consideration of extrahepatic arterial supply when angiographic intervention for liver tumors is contemplated.