非对比剂增强肾动脉MRA诊断老年肾动脉狭窄的可行性  

Feasibility of non-contrast enhanced magnetic resonance angiography for diagnosis of renal artery stenosis in elderly patients

作　　者：徐贤[1] 安宁豫[1] 陈穗惠[1] 李雪[1] 江波[1] 韩邵君[1] 刘新球[1] 

机构地区：[1]解放军总医院南楼放射科,北京100853

出　　处：《南方医科大学学报》2014年第1期84-87,共4页Journal of Southern Medical University

基　　金：解放军总医院苗圃基金(11KMM29)

摘　　要：目的评估流入反转恢复稳态自由进动(IFIR-FIEASTA)序列诊断老年患者肾动脉狭窄的效能。方法对27例老年患者进行三维对比增强磁共振血管成像(3D CE-MRA)和IFIR-FIEASTA扫描,比较两种检查方法的图像质量,采用Kappa分析检验IFIR-FIEASTA和CE-MRA诊断肾动脉狭窄的一致性。以CE-MRA为金标准,评估IFIR-FIEASTA诊断肾动脉狭窄的敏感度、特异度、准确率、阳性预测值和阴性预测值。结果两种检查方法的图像质量均100%达到诊断要求,但CE-MRA的图像质量显著优于IFIR-FIEASTA。CE-MRA和IFIR-FIEASTA诊断肾动脉狭窄的一致性好;IFIR-FIEASTA诊断肾动脉狭窄的敏感度、特异度、准确率、阳性预测值和阴性预测值分别为97.1%、100%、98.1%、100%和95%。结论 IFIR-FIEASTA诊断老年患者肾动脉狭窄的可行性很高,临床实用性强。Objective To evaluate the diagnostic efficacy of IFIR-FIESTA technique in detecting renal artery stenosis in elderly patients. Methods Twenty-seven aged patients underwent both IFIR-FIESTA and 3D CE-MRA examinations. The imaging quality and renal artery stenosis grades were evaluated. Kappa test was used to assess the consistency between the two methods. With CE-MRA as the reference, the diagnostic sensitivity, specificity, accuracy, PPV and NPV for IFIR-FIESTA were calculated in detecting renal artery stenosis. Results The images by the two methods were 100% qualified for diagnosis, although the image quality of CE-MRA was significantly better. IFIR-FIESTA and CE-MRA showed excellent consistency in detecting renal artery stenosis. With CE-MRA as the reference, the diagnostic sensitivity, specificity, accuracy, PPV and NPV for IFIR-FIESTA were 97.1%, 100%, 98.1%, 100%, and 95% in detecting renal artery stenosis, respectively. Conclusion IFIR-FIESTA is feasible as a routine examination for detecting renal artery stenosis in elderly patients.

关 键 词：肾动脉狭窄 磁共振血管成像 老年人 流入反转恢复 

分 类 号：R692[医药卫生—泌尿科学]