大脑前动脉A1段优势供血与前交通动脉瘤发生破裂相关性分析

目的探索大脑前动脉A1段优势供血与前交通动脉瘤(ACoA)发生、破裂出血的相关性。方法回顾性分析48例ACoA患者及48例无ACoA患者(对照组)头颅CTA图像观察是否存在大脑前动脉A1段优势供血(单侧发育不良或缺如),并测量ACoA瘤颈径,最大横径、最大高度及纵横径比值;观察ACcA是否破裂出血。分析ACoA组与对照组大脑前动脉A1段优势供血差异性;分析ACoA组大脑前动脉A1段优势供血与瘤颈径,最大横径、最大高度及纵横径比值及ACoA破裂出血的相关性。结果大脑前动脉A1段优势供血与ACoA相关,且与ACoA纵横径比值相关(P<0.05);大脑前动脉Al段优势供血与ACoA破裂出血不相关(P>0.05)结论大脑前动脉A1段优势供血与前交通动脉瘤形成相关,与前交通动脉瘤破裂出血不相关。

Objective To investigate the relationship of dominance blood supply of Al segnient of anterior cerebral artery(ACA)to formation and rupture of anterior communicating aneurysms(ACoA).Methods Images of cerebral computerized tomography angiography for 48 patients with ACoA and 48 controls were reviewed.The radiological parameters included presence of dominance blood supply of ACA Al,the height,width,neck width of ACoA and ratio of the height to neck width,presence of subarachnoid hemorrhage.The differences in dominance blood supply of ACA Al between ACoA and control group were analyzed.In subgroup according to presence of dominance blood supply of ACA Al in patients with ACoA,relationship of dominance blood supply of ACA Al to the height,width,neck width of ACoA and ratio of the height to neck width,and presence of subarachnoid hemorrhage were analyzed.Results Dominance blood supply of ACA Al was correlated with formation of ACoA,as well as ratio of the height to neck width of ACoA(P<0.05).However,Dominance blood supply of ACA Al were not related to niptiire of ACoA(P>0.05).Conclusion Dominance blood supply of ACA Al is correlated with formation of ACoA,but is not related to rupture of ACoA.