多层螺旋CT血管成像对椎-基底动脉供血不足的诊断价值  

Diagnostic Value of Multi-slice Spiral CT Angiography in Vertebrobasilar Artery Insufficiency

作　　者：吴立伟[1] 袁戴海[1] 单海荣[1] 张富生[1] 

机构地区：[1]江苏大学附属宜兴人民医院放射科,江苏宜兴214200

出　　处：《实用放射学杂志》2008年第8期1082-1085,共4页Journal of Practical Radiology

基　　金：江苏大学临床医学科技发展基金资助项目(编号:JLY20050042)

摘　　要：目的探讨多层螺旋CT血管成像(MSCTA)在椎-基底动脉供血不足(VBAI)中的诊断价值。方法用Siemens 16 CT机对临床诊断VBAI的患者(试验组)30例与正常对照组30例行MSCTA检查,图像后处理采用多平面重组(MPR)、最大密度投影法(MIP)和容积再现(VR)等技术进行重建,观察椎-基底动脉的形态学变化和周围骨性结构的情况并进行对比分析。结果试验组30例中,椎动脉表现正常3例,走行迂曲3例,单侧变细12例,双侧变细2例,局部狭窄9例,单侧闭塞1例;2例基底动脉延长扩张,其中1例伴有动脉瘤形成,7例基底动脉局部狭窄。对照组30例中,仅有5例单侧椎动脉变细,其余均表现正常。2组中椎动脉表现正常和狭窄(血管变细和局部狭窄)的出现比率经统计学处理2组间有显著差异(χ2=28.72,P<0.01)。试验组30例中,单侧横突孔变小14例,对照组30例中,横突孔变小2例,2组中横突孔变小出现比率差异显著(χ2=12.27,P<0.01)。结论MSCTA对VBAI的病因诊断、治疗方案的选择有重要价值。Objective To explore the diagnostic value of multi - slice spiral CT angiography（MSCTA） in vertebrobasilar artery insufficiency（ VBAI）. Methods 30 cases with VBAI diagnosed clinically and 30 healthy adults as control group were umdergone MSCTA with Siemens 16 - slice spiral CT. The three - dimensional post - processing images of two groups were reconstructed by multiplanar reconstruction （MPR） ,maximum intensity projection（MIP） and volume rendering （VR）. The data were analyzed and compared. Results In disordered group,the vertebral arteriae were normal in 3 cases,tortuous in 3 cases,thin bilaterally in 2 cases and unilaterally in 12 cases,local stenosis in 9 cases and obstruction in 1 case. Basilar arteriae were dilated in 2 cases and 1 case accompanied with aneurysm ,local stenosis in 7 cases. In control group,unilateral vertebral arteriae were thin in 5 cases and the others were normal. There was statistically significant difference between two groups in normal appearances and stenosis of vertebral arteriae （χ^2 = 28.72 ,P 〈 0.01 ）. Unilateral transverse foramen were smaller in 14 cases and 2 cases in disordered group and control group , respectively , and there was significant difference between two groups （χ^2 = 12.27 ,P 〈 0.01 ）. Conclusion MSCTA is of important clinical significance for etiologic study and guiding therapy of VBAI.

关 键 词：颈椎 椎--基底动脉 供血不足 体层摄影术 X线计算机 血管造影术 

分 类 号：R681.5[医药卫生—骨科学] R814.42[医药卫生—外科学]