三维增强MRA与DSA诊断颈动脉狭窄的对比研究  

The Diagnosis Value of Three Dimensional Contast-enhanced Magnetic Resonance Angiography in Carotial Stenosis

作　　者：王向日[1] 谢建功[1] 张新保[1] 全凌峰[1] 欧阳朝文[1] 刘金才[1] 罗学军[1] 

机构地区：[1]郴州市第一人民医院放射科,湖南郴州423000

出　　处：《湘南学院学报（医学版）》2007年第2期4-6,9,共4页Journal of Xiangnan University（Medical Sciences）

摘　　要：目的评价三维增强磁共振血管造影（3D CE-MRA）对颈动脉狭窄的诊断价值。方法对32例颈动脉狭窄患者进行3D CE-MRA和DSA检查,分别在所获得的图像上测量颈动脉狭窄的直径狭窄率,并对两组数据进行统计分析。结果本组3D CE-MRA共发现颈动脉血管狭窄39处,37处与DSA分级相符合,高估2处,其中颈动脉颅外段狭窄的敏感性、特异性、准确度分别为100%,97.8%～99.0%、97.9%～98.5%（K值=0.928～l）,颈内动脉虹吸段为10%,92.5%、93.5%（K值=0.657）。结论三维CE-MRA是对颈动脉狭窄筛查、术前评估、术后随访的最佳检查方法,能基本替代DSA检查。Objective To assess the diagnosis value of three dimensional contrast-enhanced magnetic resonance angiography （3D CE-MRA） in carotid stenosis. Methods Thirty-two patients with carodid stenosis underwent 3D CE- MRA and digital substraction angiography （DSA）contemporaneously, and measure the diameter of stenosis in carotid, and evaluated the result between two methods. Results In this group 39 carotid stenosises were found by 3D CE - MRA image, among them 37 stenosises were diagnosed with both examinations, two stenosises were highly suspected as no carotid stenosis underwent 3D CE - MRA. The sensitivity of 3D CE - MRA was 100% ,the specificity 97.8% - 99% ,and the acaucacy 97.9% - 98.5% （K = 0.928 - 1） in 3D Craniocervical artery. As in carvemous portion of internal carotid artery the sensistirity was 100%, the specficity 92.5 %, and the accuracy 93.5 % （K = 0. 657）. Conclusion 3D CE-MRA have dsmonstrated the stenosis of craniocervical arteries with reliability and can take place of DSA.

关 键 词：颈动脉狭窄 对比剂增强 磁共振成像 血管造影术 数字减影 

分 类 号：R814.42[医药卫生—影像医学与核医学]