Scan parameter optimization of renal artery with inflow-sensitive inversion recovery magnetic resonance angiography
- VernacularTitle:流入翻转恢复序列磁共振血管成像对肾动脉检查扫描参数的优化
- Author:
Peng WANG
;
Jun ZHANG
;
Qiang DIAO
;
Lin LI
;
Gang YANG
;
Ling ZHENG
;
Yanjun LI
- Publication Type:Journal Article
- Keywords:
Inflow-sensitive inversion recovery-MRA;
Blood inhibit the inversion time;
Magnetic resonance angiography;
Renal artery stenosis
- From:
Journal of Medical Postgraduates
2015;(2):186-188
- CountryChina
- Language:Chinese
-
Abstract:
Objective Non-contrast enhanced magnetic resonance angiography ( MRA) has become the focus of research at home and abroad .The aim of the article was to optimize the scan parameters of renal artery with inflow-sensitive inversion recovery ( IF-IR) MRA. Methods 30 cases of renal artery patients into two groups were collected from December 2013 to May 2014 in our hospi-tal.They were divided into stenosis group(n=12) and non-stenosis group(n=48).IFIR-MRA sequences were carried out on each patient by using various BSP-TI with 1200,1300 and 1400 ms, all other parameters were identical .The image signal to noise ratio, a renal artery branch and venous artifact were evaluated by two experienced radiologists , and the best BSP-TI was obtained from different groups. Results BSP-TI=1400 ms was optimal for renal artery stenosis group while 1200 ms was the most suitable for non-stenosis group. Conclusion IFIR-MRA of renal artery can achieve better image quality of renal artery and its branches and it is feasible in clinical routine practice , especially for those patients with renal insufficiency .
