颅内交通动脉瘤发生与Willis环变异的关系:64排CT血管成像研究  

An investigation on the relationship between cerebral aneurysms formation in communicating arteries and anatomic variation of the Willis circle by 64-slice CT angiography

作　　者：管松[1] 郑穗生[1] 

机构地区：[1]安徽医科大学第二附属医院放射科,合肥230601

出　　处：《安徽医学》2010年第11期1287-1289,共3页Anhui Medical Journal

摘　　要：目的探讨大脑前动脉水平段(A1)发育异常及胚胎型大脑后动脉与交通动脉瘤形成的关系。方法 64排螺旋CT脑血管成像诊断为颅内交通动脉瘤患者56例,前交通动脉患者26例、后交通动脉瘤患者30例,选择性别与年龄相匹配的脑血管正常组50例作为对照组。结果前交通动脉瘤组一侧大脑前动脉A1段发育异常达65.4%,明显高于后交通动脉瘤组及正常对照组(P<0.05),后交通动脉瘤组胚胎性大脑后动脉发生率为31.7%,明显高于前交通动脉瘤组及正常对照组(P<0.05)。结论一侧大脑前动脉A1段发育异常及胚胎性大脑后动脉与颅内交通动脉瘤发生密切相关。Objective To investigate the relationship between aneurysms formation in communicating branches and dysplasia of horizontal segment of anterior cerebral artery and fetal type of posterior cerebral artery.Methods Fifty-six patients harboring communicating aneurysms demonstrated by 64-slice CT Angiography （CTA ） were invovled in this study,among which 26 cases had anterior communicating aneurysms,30 cases had posterior communicating aneurysms.Fifty healthy matched volunteer were used as control subjects.Results Among the patients with anterior communicating aneurysms ,56.4%（17/26） had dysplasia （hypoplastic or absent） of the A1 segment,which is higher than the posterior communicating aneurysms （PCA group） and control subject group with great significance. Among the patients with posterior communicating aneurysms,31.7% （19/60） had fetal type of posterior cerebral artery （FTP ） in PCA,which is higher than the anterior communicating aneurysms group and normal control subject group.Conclusion The development of cerebral aneurysms in communicating branches maybe closely related with dysplasia of horizontal segment of anterior cerebral artery and fetal type of posterior cerebral artery.

关 键 词：WILLIS环 血管造影术 体层摄影术 X线计算机 动脉瘤 

分 类 号：R743[医药卫生—神经病学与精神病学] R816.1[医药卫生—临床医学]