Feasibility of non-contrast enhanced magnetic resonance angiography for diagnosis of renal artery stenosis in elderly patients
- VernacularTitle:非对比剂增强肾动脉MRA诊断老年肾动脉狭窄的可行性
- Author:
Xian XU
1
;
Ningyu AN
;
Suihui CHEN
;
Xue LI
;
Bo JIANG
;
Shaojun HAN
;
Xinqiu LIU
Author Information
1. 解放军总医院南楼放射科
- Keywords:
renal artery stenosis;
magnetic resonance angiography;
elderly patients;
inflow inversion recovery
- From:
Journal of Southern Medical University
2014;(1):84-87
- CountryChina
- Language:Chinese
-
Abstract:
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.
