Tanaka Rei, Ibukuro Kenji, Akita Keiichi
Department of Radiology, Mitsui Memorial Hospital, 1-Kanda Izumicho Chiyoda-ku, Tokyo, 101-8643, Japan.
Abdom Imaging. 2008 May-Jun;33(3):328-33. doi: 10.1007/s00261-007-9249-6.
The purpose of this study is to assess angiographic and CT appearance of left inferior phrenic artery (LIPA) arising from left hepatic or left gastric artery and to recognize its specific anatomical location with the help of cadaver dissection.
We retrospectively reviewed 761 abdominal angiographies and found 13 patients (1.7%) with LIPA arising from left hepatic or left gastric artery. We classified those origins and assessed radiological features. We also presented a cadaver dissection to identify anatomical location of LIPA arising from left hepatic artery.
The origin of the LIPA was classified as follows: (a) left hepatic artery: four, (b) accessory left gastric artery: one, (c) accessory left hepatic artery: three, and (d) left gastric artery: five patients. The proximal portion was located in gastrohepatic ligament and its distal portion was located in front of esophageal hiatus. In a cadaver dissection, the proximal portion ascends along ligamentum venosum and distal portion courses along superior aspect of left hemi diaphragm in front of esophagus.
The LIPA rarely arises from left hepatic or left gastric artery. The proximal portion was located in gastrohepatic ligament and the distal portion runs in front of the esophageal hiatus.
本研究旨在评估起源于肝左动脉或胃左动脉的左膈下动脉（LIPA）的血管造影和CT表现，并借助尸体解剖识别其特定的解剖位置。
我们回顾性分析了761例腹部血管造影，发现13例（1.7%）LIPA起源于肝左动脉或胃左动脉。我们对这些起源进行了分类并评估了影像学特征。我们还展示了一具尸体解剖以确定起源于肝左动脉的LIPA的解剖位置。
LIPA的起源分类如下：（a）肝左动脉：4例，（b）副胃左动脉：1例，（c）副肝左动脉：3例，（d）胃左动脉：5例。其近端位于肝胃韧带内，远端位于食管裂孔前方。在尸体解剖中，近端沿静脉韧带上升，远端沿食管前方的左半膈上缘走行。
LIPA很少起源于肝左动脉或胃左动脉。其近端位于肝胃韧带内，远端走行于食管裂孔前方。
