【摘要】 目的探讨三维对比增强MR磁共振血管造影(three dimensional contrast enhanced magneticre sonance angiography,3D CEMRA)在颈部动脉狭窄诊断中的价值。方法分析43例患者的3D CEMRA及DSA资料,采用配对χ2检验比较两种方法对颈动脉狭窄的检出是否有统计学差异,并比较3D CEMRA与DSA在不同程度血管狭窄方面的符合程度。结果与DSA相比,3D CEMRA颈动脉狭窄诊断的灵敏度为97.5%,特异度为95.9%,两种方法对颈动脉狭窄的检出无统计学上差异(P>0.05)。在五种狭窄程度(Ⅰ-Ⅴ)3D CE-MRA与DSA比较符合度分别为97.5%,91.7%,88.9%,93.8%,100%。结论 3D CEMRA在诊断颈动脉狭窄上具有很高的临床应用价值,基本可以替代DSA。更多还原

【Abstract】 Objective To evaluate the value of three-dimensional contrast enhanced MR angiography(3D CEMRA) in carotid stenosis.Methods 3DCEMRA and DSA data of 43 cases were analyzed,Differentiation were tested by means of paired x2 test,and compare agreement of 3D CEMRA with DSA.Results Compared with DSA,sensitivity and specificity of 3D CEMRA was 97.5%,95.9%,two methods of carotid stenosis detected had no significant differences(P> 0.05).In five stenosis degree(I~V),agreement of 3D CEMRA compared with DSA was 97.5%,91.7%,88.9%,93.8%,100%.Conclusion 3D CEMRA have high clinical value in the diagnosis of carotid stenosis,and can take place of DSA.更多还原