Futara G, Ali A, Kinfu Y
Department of Anatomy, Faculty of Medicine, Addis Ababa University, P.O. Box 9086, Addis Ababa.
Ethiop Med J. 2001 Apr;39(2):133-42.
The anatomy of the hepatic and cystic arteries were investigated in 110 postmortem and cadaveric subjects. The right hepatic artery took origin from the proper hepatic artery (66.3%), the common hepatic artery (18.2%), the superior mesenteric artery (8.2%) or the celiac trunk (7.3%). Ten cases of accessory right hepatic artery originating from the superior mesenteric artery (7 cases), gastroduodenal artery (2 cases) or the left hepatic artery (1 case) were observed. The origin of the left hepatic artery included the proper hepatic artery (71.8%), the common hepatic artery (16.4%), the celiac trunk (10.9%) and the splenic artery (0.9%). The 14 cases of accessory left hepatic arteries originated from the common hepatic artery (5 cases), right hepatic artery (3 cases), gastroduodenal artery (2 cases) or the celiac trunk (4 cases). An extrahepatic branch to the quadrate lobe of the liver, also known as the middle hepatic artery, was observed in 47.3% arising mainly from the right or left hepatic arteries (20% each), the superior mesenteric artery (2.7%) and from the gastroduodenal artery (4.6%). The cystic artery mainly arose from the right hepatic artery (75.5%) but also took origin from the middle hepatic artery (12.7%), gastroduodenal artery (7.3%) or the left hepatic artery (4.5%). When the cystic artery is to the left of the common hepatic artery at its origin (39.1%), it crossed from left to right anterior to the common hepatic duct (28.2%) or posterior to the duct (10.9%). Irrespective of its relationship with the common hepatic duct, the cystic artery passed in the triangle of Calot in 89 cases. There were 11 accessory cystic arteries arising from the right hepatic (6 cases), the middle hepatic (3 cases) or the left hepatic arteries (2 cases). Arterial variations seen in the present study were significantly higher (p < 0.05) than that reported in the literature. This was mainly due to the variations seen in origin of the right hepatic artery in the female subjects which was significantly higher (p < 0.05) than in the male subjects. The significance of this finding needs further investigation.
对110例尸体和尸检对象的肝动脉和胆囊动脉解剖结构进行了研究。肝右动脉起源于肝固有动脉（66.3%）、肝总动脉（18.2%）、肠系膜上动脉（8.2%）或腹腔干（7.3%）。观察到10例副肝右动脉，分别起源于肠系膜上动脉（7例）、胃十二指肠动脉（2例）或肝左动脉（1例）。肝左动脉的起源包括肝固有动脉（71.8%）、肝总动脉（16.4%）、腹腔干（10.9%）和脾动脉（0.9%）。14例副肝左动脉分别起源于肝总动脉（5例）、肝右动脉（3例）、胃十二指肠动脉（2例）或腹腔干（4例）。观察到47.3%的肝脏方叶有肝外分支，即肝中动脉，主要起源于肝右动脉或肝左动脉（各占20%）、肠系膜上动脉（2.7%）和胃十二指肠动脉（4.6%）。胆囊动脉主要起源于肝右动脉（75.5%），但也可起源于肝中动脉（12.7%）、胃十二指肠动脉（7.3%）或肝左动脉（4.5%）。当胆囊动脉在其起始处位于肝总动脉左侧时（39.1%），它从左向右越过肝总管前方（28.2%）或后方（10.9%）。无论其与肝总管的关系如何，胆囊动脉在89例中走行于胆囊三角内。有11例副胆囊动脉，分别起源于肝右动脉（6例）、肝中动脉（3例）或肝左动脉（2例）。本研究中观察到的动脉变异明显高于文献报道（p<0.05）。这主要是由于女性受试者肝右动脉起源的变异明显高于男性受试者（p<0.05）。这一发现的意义需要进一步研究。
