基于CTA的大脑前循环动脉形态学与前交通动脉瘤相关性分析

Correlation Analysis of Anterior Cerebral Circulation Artery Morphology and Anterior Communicating Artery Aneurysm Based on CTA

目的:探讨大脑前循环动脉形态参数与前交通动脉瘤(AcomAA)的相关性。方法:收集我院AcomAA的患者CTA 73例作为AcomAA患者组和颅脑CTA正常的患者85例作为对照组。采用独立样本t检验,比较AcomAA患者同侧与对侧以及对照组大脑前循环动脉的形态学参数(血管直径,血管直径比值和血管分岔角度)。结果:AcomAA患者组同侧的ICA直径大于对侧的ICA直径及对照组的平均ICA直径(P=0.005,P<0.001)。AcomAA患者的对侧ICA直径与对照组的平均ICA直径无统计学意义(P=0.084)。AcomAA患者的同侧A1直径大于对侧A1直径和对照组的平均A1直径(P<0.001,P=0.002)。AcomAA患者对侧A1的直径小于对照组的平均A1直径(P<0.001)。AcomAA患者的同侧M1直径与对侧M1直径及对照组的平均M1直径无统计学差异(P=0.657,P=0.567)。AcomAA患者对侧的ICA/A1比值高于同侧及对照组的平均ICA/A1比值(P<0.001,P<0.001)。AcomAA患者同侧ICA/A1比值与对照组的平均ICA/A1比值无统计学差异(P=0.958)。AcomAA患者同侧A1/A2比值高于对侧A1/A2比值和对照组平均A1/A2比值(P<0.001,P<0.001)。AcomAA患者的对侧A1/A2比值小于对照组的平均A1/A2比值(P<0.001)。AcomAA患者组同侧A1-A2分岔角度最小(90.80±19.98),对照组平均角度最大(115.58±17.41),两两比较均有统计学差异(P<0.001,P<0.001,P=0.042)。结论:大脑前循环动脉的形态学可能与AcomAA具有相关性。

Objective:To investigate the correlation between the morphological parameters of anterior cerebral circulation artery and anterior communicating artery aneurysm(AcomAA).Methods:73 patients with Acom AA were collected as the AcomAA patient group and 85 patients with normal craniocerebral CTA as the control group.Independent sample T-test was used to compare the morphological parameters of anterior cerebral circulation arteries(vessel diameter,vessel diameter ratio and vessel biforking Angle)of the ipsilateral and contralateral AcomAA patients and the control group.Results:ICA diameter on the ipsilateral side of AcomAA patients was greater than that on the contralateral side and average ICA diameter on the control group(P=0.005,P<0.001).There was no statistical significance between the contralateral ICA diameter of AcomAA patients and the mean ICA diameter of the control group(P=0.084).The ipadal A1 diameter of AcomAA patients was larger than the contralateral A1 diameter and the average A1 diameter of the control group(P<0.001,P=0.002).The contralateral A1 diameter of Acom AA patients was smaller than the average A1 diameter of the control group(P<0.001).There was no statistically significant difference between the ipsilateral and contralateral M1 diameers of AcomAA patients and the average M1 diameers of the control group(P=0.657,P=0.567).ICA/A1 ratio on the contralateral side of AcomAA patients was higher than the average ICA/A1 ratio on the ipsilateral side and control group(P<0.001,P<0.001).There was no statistically significant difference in ICA/A1 ratio between the ipilateral AcomAA patients and the mean ICA/A1 ratio in the control group(P=0.958).The ipilateral A1/A2 ratio of AcomAA patients was higher than the contralateral A1/A2 ratio and the average A1/A2 ratio of the control group(P<0.001,P<0.001).The contralateral A1/A2 ratio of AcomAA patients was lower than the average A1/A2 ratio of the control group(P<0.001).The ipsilateral A1-A2 bifurcation Angle of the Acom AA patient group was the smallest(90.80±19.98),and the average Angle of the control group was the largest(115.58±17.41),and pairwise comparison showed statistical differences(P<0.001,P<0.001,P=0.042).Conclusion:The morphology of anterior cerebral circulation artery may be correlated with AcomAA.