【摘要】 目的应用3.0 T磁共振血管成像(MRA)技术对基底动脉进行活体观察和测量。方法对108例受试者行MRA及常规MRI检查,男58例,女50例,年龄4～63岁。观察颅内段椎基底动脉形态分型,测量基底动脉长度及管腔直径,并进行统计学分析。结果基底动脉常见类型依次为ⅠⅠ型、ⅡRⅢ型、ⅡRⅠ型或ⅡLⅠ型。基底动脉平均直线长度为(2.35±0.30)cm,男性比女性基底动脉直线长度长(t=4.19,P<0.0001)。基底动脉直线长度与年龄呈直线正相关(P<0.05,r=0.28)。51例基底动脉发生侧弯,除1例为双侧弯曲外,余均为单侧弯曲。基底动脉管腔平均直径(0.26±0.05)cm。基底动脉上、中、下3段管腔直径无差别(χ2=3.13,P>0.05)。男性比女性基底动脉管腔平均直径宽(t=3.03,P<0.05)。结论 MRA可以对基底动脉进行无创性在体测量和研究,得到基底动脉分型图及相关参数。更多还原

【Abstract】 Objective To observe and measure the basilar artery in vivo by 3.0 T magnetic resonance angiography(MRA).Method A total of 108 subjects experienced MRA and conventional MRI examination,the sex ratio was 58 male to 50 female,and the age ranged from 4 to 63 years [mean(39.86 ± 14.57) years].Observing and recording the intracranial vertebrobasilar artery morphological type,measuring the length and lumen diameter of the basilar artery.Statistical testing was performed.Results The common types of basilar artery followed by typeⅠⅠ,typeⅡ RⅢ,type ⅡRⅠor typeⅡLⅠ.The average straight line length of the basilar artery was(2.35 ± 0.30)cm.The straight line length of the basilar artery in men was longer than that in women(t = 4.19,P < 0.000 1).Straight line length of the basilar artery was correlated with age(P < 0.05,r = 0.28).The number of the bending basilar artery was 51,in addition to 1 case of bilateral bending,the others were unilateral.The average diameter of the basilar artery was(0.26 ± 0.05) cm.there was no difference between the diameter of upper,middle and lower segment of basilar artery(χ2 = 3.13,P > 0.05).The average diameter of the basilar artery in men was widther than that of the women(t = 3.03,P < 0.05).Conclusion MRA can be used to measure and research the basilar artery non-invasive in vivo,so to obtain the type maps of basilar artery and related parameters.更多还原