The significance of the morphology of the dorsal pancreatic artery in determining the presence of the accessory right hepatic artery passing behind the portal vein.
The significance of the morphology of the dorsal pancreatic artery in determining the presence of the accessory right hepatic artery passing behind the portal vein.
复制标题
胰背动脉的形态对于确定是否存在从门静脉后面穿过的副右肝动脉的意义。
DOI：
--
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
H. Matsumura
中科院分区：
文献类型：
--
作者：
H. Matsumura
在 98 例日本标本中对经过门静脉后方的胰背动脉 (DP) 和右肝副动脉 (AcRH) 进行了研究。在 87 个标本 (88.8%) 中发现了胰背动脉。该动脉被发现有以下6个分支：（1）胰下动脉（左支，83.9%）； （2）右支1，作为胰腺前面的胰前弓（77.0%）； (3) 钩突分支，分布于钩突（60.9%）； (4)从胰腺背侧分布至胰头的头支(本研究新定义，占60.9%)； (5)右支4，分布于胰颈背侧上方(39.1%)； (6) 与后胰十二指肠弓相通的右分支 5 (21.8%)。在某些情况下，上述六个分支是单独形成的，即存在两条（18.4%）或三条（5.7%）胰背动脉。 DP的载瘤动脉为肠系膜上动脉（SM；55.0%），占整个腹腔干的45.0%。在 18 个标本（18.4%）中发现了副肝右动脉。在AcRH起源于整个腹腔干的情况下（5个标本，27.8%），它总是与DP形成一个共同的干。另一方面，当来自SM的AcRH（13个样本，72.2%）与样本的DP 6（33.3%）形成共同主干时，在6个样本（33.3%）中观察到独立分枝。 1 例标本（5.6%）观察到与胰十二指肠下动脉有共同主干。胰背动脉被认为不仅供应 AcRH，还供应其他形成更复杂变异的通路，例如副中结肠动脉。
The dorsal pancreatic artery (DP) and an accessory right hepatic artery (AcRH) passing behind the portal vein were investigated in 98 Japanese specimens. The dorsal pancreatic artery was identified in 87 specimens (88.8%). This artery has been found to yield the following 6 branches: (1) an inferior pancreatic artery (left branch, 83.9%); (2) a right branch-1 that serves as the prepancreatic arcade in front of the pancreas (77.0%); (3) an uncinate branch that distributes to the uncinate process (60.9%); (4) a head branch that distributes from the dorsal side of the pancreas to the head of the pancreas (newly defined in the present study, 60.9%); (5) a right branch-4 that distributes superior to the dorsal part of the pancreatic neck (39.1%); and (6) a right branch-5 that communicates with the posterior pancreaticoduodenal arcade (21.8%). In some cases, the above six branches are formed separately, i.e., two (18.4%) or three (5.7%) dorsal pancreatic arteries are present. The parent artery of the DP was the superior mesenteric artery (SM; 55.0%), accounting for 45.0% of the entire celiac trunk. An accessory right hepatic artery was identified in 18 specimens (18.4%). In cases where the AcRH originated from the entire celiac trunk (5 specimens, 27.8%), it always formed a common trunk with the DP. On the other hand, when the AcRH derived from the SM (13 specimens, 72.2%), it formed a common trunk with the DP 6 of the specimens (33.3%), independent branching was observed in 6 specimens (33.3%). And a common trunk with the inferior pancreaticoduodenal artery was observed in one specimen (5.6%). The dorsal pancreatic artery was considered to supply not only the AcRH but also other pathways that form more complicated variations such as an accessory middle colic artery.