Uz A, Erbil K M, Esmer A F
Ankara University School of Medicine, Department of Anatomy, Ankara, Turkey.
Folia Morphol (Warsz). 2005 Nov;64(4):269-72.
There has recently been an increase in surgical interventions to the inferior temporal lobe. The aim of the present study is to examine the anatomical structure and relations of the anterior choroidal artery, which extends to this region. A mixture of latex and ink was injected into the internal carotid and basilar arteries of 15 brains from fresh cadavers. In 18 out of 30 cases (60%) the anterior choroidal artery arose from the posteroinferior aspect of the internal carotid artery, in 8 (22.2%) from the posterolateral aspect and in 4 (2%) from its anterior part. The diameter of the anterior choroidal artery was 0.94 mm on average (0.7-1.2) and the average distance from the posterior communicating artery was 5.3 mm (3.8-8 mm); its distance to the bifurcation of the carotid was found to be 4.0 mm on average (2.2-8 mm). The cisternal segment of the anterior choroidal artery and the optic tract formed a neurovascular bundle. The branches arising from the plexal segment supply the lateral geniculate body, the thalamus and the optic tract. The resulting knowledge of the neurovascular relations of the anterior choroidal artery provides a safe surgical approach to the inferior temporal lobe.
最近，颞叶下部的外科手术干预有所增加。本研究的目的是检查延伸至该区域的脉络膜前动脉的解剖结构和关系。将乳胶和墨水的混合物注入15具新鲜尸体大脑的颈内动脉和基底动脉。在30例病例中的18例（60%）中，脉络膜前动脉起源于颈内动脉的后下方面，8例（22.2%）起源于后外侧面，4例（2%）起源于其前部。脉络膜前动脉的平均直径为0.94毫米（0.7 - 1.2），与后交通动脉的平均距离为5.3毫米（3.8 - 8毫米）；发现其到颈内动脉分叉处的距离平均为4.0毫米（2.2 - 8毫米）。脉络膜前动脉的脑池段与视束形成一个神经血管束。丛状段发出的分支供应外侧膝状体、丘脑和视束。所获得的关于脉络膜前动脉神经血管关系的知识为颞叶下部提供了一种安全的手术入路。
