Organ Transplantation Center, Sun Yat-Sen University, Guangzhou, China.
Liver Transpl. 2010 Jun;16(6):736-41. doi: 10.1002/lt.22082.
In comparison with the left and right hepatic arteries, there is a relative lack of information on the middle hepatic artery (MHA). In this study, data obtained by multidetector computed tomography from 145 patients were studied to evaluate anatomical variations of the MHA, a hilar artery that primarily supplies hepatic segment 4. An MHA was present in 103 (71%) of the subjects. In livers that had a replaced left hepatic artery, the MHA originated from the right hepatic artery; in livers that had a replaced right hepatic artery, it originated from the left hepatic artery. It always arose directly or indirectly from the common hepatic artery, from which the gastroduodenal artery also arose. We classified MHAs into 5 types according to the anatomical variations of the origin. This classification may have major relevance to modern surgical practice related to living donor liver transplantation (LDLT). The new classification of hepatic arterial anatomy may enhance the acquisition of further knowledge on arterial development, and its application may favorably influence the outcome of LDLT.
与左、右肝动脉相比，关于中肝动脉（MHA）的信息相对较少。在这项研究中，通过对 145 例患者的多排 CT 数据进行研究，评估了主要供应肝段 4 的肝门动脉 MHA 的解剖变异。103 例（71%）患者存在 MHA。在具有替代左肝动脉的肝脏中，MHA 起源于右肝动脉；在具有替代右肝动脉的肝脏中，它起源于左肝动脉。它总是直接或间接地从共同肝动脉起源，胃十二指肠动脉也从共同肝动脉起源。根据起源的解剖变异，我们将 MHAs 分为 5 种类型。这种分类可能与活体供肝移植（LDLT）相关的现代外科实践有重要关系。新的肝动脉解剖分类可能有助于进一步了解动脉发育，其应用可能有利于 LDLT 的结果。
