Communicating arcade between the right and left hepatic arteries: Evaluation with CT and angiography during temporary balloon occlusion of the right or left hepatic artery
Communicating arcade between the right and left hepatic arteries: Evaluation with CT and angiography during temporary balloon occlusion of the right or left hepatic artery
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DOI：
10.1148/radiol.2371040919
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发表时间：
2005-10-01
期刊：
影响因子：
19.7
通讯作者：
Ochiai, T
中科院分区：
文献类型：
--
作者：
Tohma, T;Cho, A;Ochiai, T
目得：为了前瞻性地评估肝门动脉侧支系统和肝门胆管的血液供应之间的关系，通过使用计算机断层扫描（CT）和血管造影术在临时球囊闭塞的右或左hepatic artery.MATERIALS和METHODS：机构审查委员会批准和知情同意书获得。该研究纳入了13例肝门无病变的患者（8例男性和5例女性;年龄范围：41-78岁;平均年龄：65.8岁）。在进行了一系列血管造影研究以进行术前评估或经导管动脉化疗栓塞后，将带有闭塞球囊的5.5-F导管定位在右或左肝动脉中。11例患者接受了肝左动脉血管造影术并暂时阻断肝右动脉，2例患者接受了肝右动脉血管造影术并暂时阻断肝左动脉。此外，I/I患者在肝动脉造影（CTHA）期间接受了单水平动态CT检查，并暂时阻断了右或左肝动脉。从血管造影和CTHA的图像进行了解释，由两位作者谁评估的存在的动脉交通及其分支点，位置，并与肝门胆管和尾状叶的关系。结果：在暂时闭塞的右或左肝动脉，交通弓（CA）之间的右和左肝动脉立即明显在所有患者。在左侧，CA起源于8例患者（62%）的IV段动脉和5例患者（38%）的肝左动脉。在右侧，CA起源于肝右前动脉6例（46%），肝右动脉2例（15%），肝右动脉5例（38%）。CA位于肝外，靠近肝门胆管，分支入尾状叶，结论：CA不仅在肝叶间动脉侧支系统中起重要作用，而且在尾状叶和肝门胆管的血供中也起重要作用。(c)RSNA，2005年。
PURPOSE: To evaluate prospectively the relationship between the arterial collateral system at the hepatic hilum and the blood supply to the hilar bile duct by using computed tomography (CT) and angiography during temporary balloon occlusion of the right or left hepatic artery.MATERIALS AND METHODS: Institutional review board approval and informed consent were obtained. The study included 13 patients with no lesions at the hepatic hilum (eight men and five women; age range, 41-78 years; mean, 65.8 years). After serial angiographic studies were performed for preoperative evaluation or transcatheter arterial chemoembolization, a 5.5-F catheter with an occlusion balloon was positioned in the right or left hepatic artery. Eleven patients underwent angiography of the left hepatic artery with temporary occlusion of the right hepatic artery, and two patients underwent angiography of the right hepatic artery with temporary occlusion of the left hepatic artery. In addition, I I patients underwent single-level dynamic CT during hepatic arteriography (CTHA) with temporary occlusion of the right or left hepatic artery. The images from angiography and CTHA were interpreted by two authors who assessed the existence of the arterial communication and its branching points, location, and relationship to the hilar bile duct and caudate lobe.RESULTS: During temporary occlusion of the right or left hepatic artery, the communicating arcade (CA) between the right and left hepatic arteries was immediately evident in all patients. On the left side, the CA originated from the segment IV artery in eight patients (62%) and from the left hepatic artery in five (38%). On the right side, the CA originated from the right anterior hepatic artery in six patients (46%), the right hepatic artery in two (15%), and both arteries in five (38%). The CA was extrahepatically located close to the hilar bile duct and forked into a few branches to the caudate lobe.CONCLUSION: The CA may play an important role not only in the interlobar arterial collateral system but also in the blood supplies to the caudate lobe and hilar bile duct. (c) RSNA, 2005.