Değirmenci B, Kara M, Kıdır V, İnal S, Sezer T, Umul A, Orhan H, Çelik A O, Demirtaş H, Yilmaz Ö
Department of radiology, school of medicine, Süleyman Demirel university, 32260 Isparta, Turkey.
Department of radiology, school of medicine, Süleyman Demirel university, 32260 Isparta, Turkey.
Diagn Interv Imaging. 2017 Feb;98(2):133-140. doi: 10.1016/j.diii.2016.06.013. Epub 2016 Aug 5.
To compare unenhanced three-dimensional (3D) NATIVE true fast imaging with steady-state precession (TrueFISP) magnetic resonance (MR) angiography with the more conventional MR angiography technique obtained after intravenous administration of a gadolinium chelate in the evaluation of renal arteries and their branches in patients with suspected renal artery stenosis.
A total of 39 patients (25 men, 14 women) with a mean age of 51.4±17.5years (SD) (range: 10-82years) were included in the study. All patients with suspected renal artery stenosis underwent unenhanced 3D NATIVE TrueFISP MR angiography and contrast-enhanced MR angiography. The two MR angiography methods were compared by two independent readers for image quality using a four-point scale, diagnostic performance and grading of renal artery stenosis on a total of 78 renal arteries.
For both readers image quality of unenhanced 3D NATIVE TrueFISP MR angiography (3.12 to 3.63) was greater than that of contrast-enhanced MR angiography (1.94 to 2.71) for renal artery ostium-trunk and the left renal artery segmental branches. The sensitivity of 3D NATIVE TrueFISP MR angiography for the diagnosis of renal artery stenosis was 100% for both readers for the right renal artery and 66% and 80% for the left renal artery for reader 1 and reader 2, respectively. Agreement between 3D NATIVE TrueFISP MR angiography and CE-MR angiography was 95% (74/78) for reader 1 and 92% (72/78) for reader 2.
Unenhanced NATIVE TrueFISP magnetic resonance angiography can play an additional role in the evaluation of renal arteries in patients with hypertension, especially in subjects at risk of nephrogenic systemic fibrosis.
在疑似肾动脉狭窄患者中，比较静脉注射钆螯合物后获得的传统磁共振血管造影技术与非增强三维（3D）NATIVE稳态进动快速成像（TrueFISP）磁共振（MR）血管造影对肾动脉及其分支的评估效果。
本研究共纳入39例患者（25例男性，14例女性），平均年龄51.4±17.5岁（标准差）（范围：10 - 82岁）。所有疑似肾动脉狭窄的患者均接受了非增强3D NATIVE TrueFISP MR血管造影和对比增强MR血管造影。两位独立阅片者使用四分制量表对两种MR血管造影方法的图像质量、诊断性能以及78条肾动脉的肾动脉狭窄分级进行比较。
对于两位阅片者而言，在肾动脉开口 - 主干及左肾动脉节段分支方面，非增强3D NATIVE TrueFISP MR血管造影的图像质量（3.12至3.63）高于对比增强MR血管造影（1.94至2.71）。对于右肾动脉，3D NATIVE TrueFISP MR血管造影诊断肾动脉狭窄的敏感性，阅片者1和阅片者2均为100%；对于左肾动脉，阅片者1为66%，阅片者2为80%。阅片者1的3D NATIVE TrueFISP MR血管造影与对比增强MR血管造影的一致性为95%（74/78），阅片者2为92%（72/78）。
非增强NATIVE TrueFISP磁共振血管造影在高血压患者肾动脉评估中可发挥辅助作用，尤其对于有发生肾源性系统性纤维化风险的患者。
