大脑后动脉内侧段与后交通动脉瘤的关系

The Relation between the Internal Segment of Posterior Cerebral Artery and Posterior Communicating Artery Aneurysms

本文分析了６４例颅内动脉瘤全脑血管造影资料，就大脑后动脉内侧段异常在后交通动脉所占的比率，与后交通动脉瘤的关系及与性别、年龄的关系进行了探讨。指出大脑后动脉内侧段异常（ＡＩＳ－ＰＣＡ）是发生后交通动脉瘤（ＰｃｏＡＡ）血流动力学变化的重要因素之一，而女性及动脉粥样硬化是引起大脑后动脉内侧段异常的重要因素之一。

In this Study the authors analyzed the whole cerebral angiographic materials of 64 cases:explored the relationship between rate of abnormal internal segment of posterior cerebral artery(AISPCA)and posterior communicating artery aneurysm (PcoAA).We also descriled the relationship between AISPCA and sex and age.We pointed out that the event of AISPCA was one of the important reason in the occuring of hemodynamic change in PcoAA. Female and atherosclerosis were major reasons in causing AISPCA.These findings emphasized the significancy of the AISPCA in imaging diagnosis and surgical therapy of PcoAA.