大脑前动脉A2段和前交通动脉夹角与前交通动脉动脉瘤发生率相关性的影像研究  

The correlation between anterior communicating artery aneurysms and the angles that angled by A2 segment of anterior cerebral artery and anterior communicating artery visualized by 3D - DSA

作　　者：万刚[1] 李良[2] 鲍圣德[2] 莫大鹏[2] 刘伯山[3] 

机构地区：[1]民航总医院神经外科,北京100123 [2]北京大学第一医院神经外科 [3]北京大学第一医院放射科

出　　处：《中华神经外科杂志》2013年第7期698-701,共4页Chinese Journal of Neurosurgery

摘　　要：目的通过测量3D—DSA图像上大脑前动脉A2段与前交通动脉的夹角大小，探讨该角度与前交通动脉动脉瘤发生率的相关性。方法对31例颈内动脉系统动脉瘤患者的3D—DSA影像资料进行回顾性分析，前交通动脉动脉瘤患者为观察组，其余患者为对照组，使用配套软件分别测量观察组和对照组的大脑前动脉A2段与前交通动脉（ACoA）的空间角度，利用SPSS11．5统计软件分析两组间的差异性。结果31例患者中前交通动脉动脉瘤者15例，对照组16例。观察组A2-ACoA夹角平均为140．5°±19．76°，对照组平均夹角为114．7°±16．73°，统计分析两组间差异有统计学意义（t=3．928P〈0．001）。结论大脑前动脉A2段与前交通动脉的空间夹角与前交通动脉动脉瘤的发生有相关性。夹角大者易于发生前交通动脉动脉瘤。Objective To examine whether there is any correlation between the angles of A2 - ACoA of anterior communicating artery complex visualized by 3D - DSA and the initiation of anterior communicating artery aneurysms. Methods A retrospective study was conducted in 31 patients with suspected aneurysms of internal carotid artery system. The patients were presented at our department from August 2009 to December 2011. Of the 31 patients, 15 anterior cerebral artery aneurysms were found and served as the observation group. 16 other subjects served as the control group. 3D - DSA images of all these patients were studied. The A2 - ACoA angles of two groups were compared and analyzed statistically using SPSS 11.5. Results The average A2 - ACoA angle in observation group is determined to be 140. 5 ± 19.76 degrees, but in the control group it is 114. 7 ± 16.73 degrees. There is statistically difference between the two groups. Conclusions There is correlation between the A2 - ACoA angle of anterior cerebral artery complex and the initiation of anterior communicating artery aneurysm. Patients with larger A2 - ACoA angle may be apt to suffer from anterior communicating aneurysm.

关 键 词：大脑前动脉 前交通动脉 血流动力学 角度 

分 类 号：R743[医药卫生—神经病学与精神病学]