摘要
目的通过"金标准"数字减影血管造影(DSA)技术明确椎动脉起始部狭窄(VOS)患病率,并探讨对比增强磁磁共振血管造影(CE MRA)和CT血管成像(CTA)对VOS的患病率的评估价值。方法根据年龄进行分组,对本研究收集的339例患者通过DSA进行椎动脉评估,并计算VOS的患病率,类似的方法分别对254例患者通过CE MRA进行研究,259例患者通过CTA进行研究,然后对患病率与年龄进行χ2检验分析。结果通过DSA评估的VOS发病率为5.8%,且与患者年龄相关,40岁以下患者未见VOS,12.5%的患者年龄超过70岁,通过CE MRA评估的VOS的发病率为21%,CTA评估的VOS的发病率为1.1%,CE MRA和CTA评估的患病率与年龄均不存在相关性。结论对椎动脉起始部的研究,CE MRA显著高估VOS的程度和患病率,CTA显著低估了VOS的程度和患病率,DSA是评估椎动脉起始部患病率的"金标准"。
Objective To investigate the prevalence of vertebral artery ostial stenosis by the ＂gold standard＂ for digital subtraction angiography（DSA） technology and explore the assess value of contrast enhanced magnetic resonance angiography（CE MRA） and CT angiography（CTA） on the prevalence of VOS.Methods Patients were grouped according to age,the prevalence of VOS of 339 cases were assessed and calculated by DSA;similarly,254 cases were assessed and calculated by CE MRA study,259 patients by CTA,then the relationship between prevalence and patient age was analyzed by χ2 test.Results The prevalence of VOS assessed by DSA was 5.8%,which was related to age of patients;Vertebral Artery Ostial Stenosis was not found in patients under 40 years but 12.5% of patients were over 70 years.The prevalence of VOS assessed by CE MRA was 21%,the prevalence of VOS assessed by CTA was 1.1%,which were both not related to age of patients.Conclusion The CE MRA overestimates the extent and the prevalence of VOS;and the CTA underestimate the extent and the prevalence of VOS.To assess the extent and prevalence,DSA is the ＂gold standard＂.
出处
《重庆医学》
CAS
CSCD
北大核心
2013年第10期1097-1099,共3页
Chongqing medicine
