摘要
目的:探讨动态增强磁共振血管造影与螺旋CT血管造影诊断肾动脉狭窄的临床效果。方法:抽取2014年3月-2016年3月我院接收50例疑似肾动脉狭窄患者,分别实施动态增强磁共振血管造影及螺旋CT血管造影检查,两次检查间隔3d进行,经检查证实有25例肾动脉狭窄患者,对其实施数字减影血管造影检查。对比两种检查方式肾动脉狭窄诊断情况及其与数字减影血管造影检查结果差异。结果:动态增强磁共振血管造影检测出60处狭窄,检出率为60.0%,其中Ⅰ级25例,Ⅱ级13例,Ⅲ级19例,Ⅳ级3例;螺旋CT血管造影检测出57处狭窄,检出率为57.0%,其中Ⅰ级23例,Ⅱ级14例,Ⅲ级17例,Ⅳ级3例;动态增强磁共振血管造影诊断阴性预测值为98.0%,阳性预测值为91.8%,特异性为94.0%,敏感性为96.0%;螺旋CT血管造影诊断阴性预测值为96.7%,阳性预测值为93.4%,特异性为95.7%,敏感性为96.8%。结论:动态增强磁共振血管造影与螺旋CT血管造影均可准确诊断肾动脉狭窄症状,且螺旋CT血管造影特异性及敏感性等略优于动态增强磁共振血管造影,但后者安全性较高。
Objective:To investigate the clinical effect of dynamic contrast-enhanced magnetic resonance angiography and spiral CT angiography in the diagnosis of renal artery stenosis.Methods :50 patients with suspected renal artery stenosis were received in our hospital from March 2014 to March 2016,dynamic contrast-enhanced magnetic resonance angiography and spiral CT angiography were performed respectively,and the two time interval was 3 days.After examination,there were 25 patients with renal artery stenosis,and they were examined by digital subtraction angiography.We compared the diagnosis of renal artery stenosis and the difference between the two methods and the results of digital subtraction angiography.Results:60 cases were detected by dynamic contrast enhanced magnetic resonance angiography,the detection rate was 60%,the detection rate was,of which Ⅰ grade 25 cases,Ⅱ grade 13 cases,Ⅲ grade 19 cases,Ⅳ grade 3 cases.Spiral CT angiography detected 57 stenosis,the detection rate was 57%,of which 23 cases of Ⅰ grade,Ⅱ grade 14 cases,Ⅲ grade 17 cases,Ⅳ grade 3 cases.The negative predictive value was 98%,the positive predictive value was 91.8%,the positive predictive value was,the specificity was 94%,and the sensitivity was 96%; The negative predictive value was 96.7%,the positive predictive value was 93.4%,the specificity was 95.7%,and the sensitivity was 96.8%.Conclusion:Dynamic enhanced magnetic resonance angiography and spiral CT angiography can be accurate diagnosis of renal artery stenosis,and spiral CT angiography specificity and sensitivity are slightly better than the dynamic enhanced magnetic resonance angiography,but the latter has high security.
出处
《现代医用影像学》
2017年第2期317-319,共3页
Modern Medical Imageology
关键词
动态增强磁共振血管造影
螺旋CT血管造影
肾动脉狭窄
Dynamic contrast-enhanced magnetic resonance angiography
Spiral CT angiography
Renal artery stenosis