DSA及CEUS评价颈动脉狭窄程度的探讨  

Study of DSA and contrast-enhanced ultrasonography on grading extracranial carotid stenosis

作　　者：彭松[1] 于德玲[1] 梁琪[1] 何炜[1] 

机构地区：[1]中南大学湘雅三医院放射科,湖南长沙410013

出　　处：《湖南师范大学学报（医学版）》2011年第2期27-29,共3页Journal of Hunan Normal University(Medical Sciences)

摘　　要：目的:探讨数字减影血管造影(DSA)及超声造影(CEUS)评估颅外段颈动脉狭窄检出率及病变程度的价值。方法:运用常规超声和CEUS对颅外段颈动脉狭窄患者进行显像,判断狭窄的部位及程度,与DSA结果相对比。结果:本组患者经DSA及CEUS检查后发现,CEUS较常规超声明显改善了对血管狭窄的检出,以DSA结果为金标准,常规超声和CEUS对轻中度狭窄、重度狭窄、完全闭塞的判断符合率分别为74.8%和90.3%(P<0.05)、63.5%和96.2%(P<0.01)、35.7%和100%(P<0.05)。CEUS和DSA对狭窄率计算值呈显著线性正相关(r=0.929,P<0.001)。结论:CEUS优于常规超声,与DSA相关性较高,能够较为准确、无创的评估颅外段颈动脉狭窄。Objective To assess the accuracy comparatively of DSA and contrast-enhanced ultrasonography(CEUS) in grading extracranial carotid stenosis.Methods Foundmental ultrasonography,CEUS and DSA were performed in patients suspected with carotid stenosis.Results The contour and structure of carotid were imaged clearly by CEUS.The consistent rates in diagnosis on mild stenosis,severe stenosis and complete obstruction by baseline ultrasonography and CEUS are 74.8% and 90.3%(P <0.05),63.5% and 96.2%(P <0.01),35.7% and 100%(P <0.05) respectively when judged by DSA as the golden standard.CEUS and DSA were correlated significantly on calculating the stenosis rate(r = 0.929,P <0.001).Conclusion CEUS can assess the degree of extracranial carotid stenosis accurately and non-invasively which is superior to baseline ultrasonography and correlated significantly with DSA.

关 键 词：颈动脉狭窄 数字减影血管造影 超声检查 造影剂 

分 类 号：R543.4[医药卫生—心血管疾病]