老年患者非对比剂增强肾动脉磁共振血管造影的参数优化探讨  

Parametric optimization of non-contrast enhanced magnetic resonance angiography of renal artery in aged people

作　　者：徐贤[1] 安宁豫[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：《中国临床保健杂志》2013年第3期240-242,共3页Chinese Journal of Clinical Healthcare

摘　　要：目的优化老年患者非对比剂增强肾动脉磁共振血管造影(MRA)的扫描参数。方法将45例60岁以上的老年受试者分为60～75岁组和75岁以上组,采用不同的血流抑制反转时间(BSP-TI)进行扫描,通过比较图像质量、肾动脉分支和肾静脉伪影,得出不同年龄组的最佳BSP-TI时间。结果 60～75岁组的老年患者选择1 200 ms的BSP-TI时间能获得最佳成像效果,75岁以上组的老年患者选择1 300 ms的BSP-TI时间能获得最佳成像效果。结论非对比剂增强肾动脉MRA能良好地显示肾动脉及其分支,有较好的临床实用性。Objective To optimize the scan parameters of renal artery non-contrast enhanced magnetic resonance angiography in aged people. Methods Forty-five aged people were divided into 60-75 year-old group and over 75 year-old group. IFIR-FIESTA sequences were carried out by using various BSP-TI with 1lOOms, 1200ms and 1300ms, all other parameters were identical. The image quality, renal artery branches and renal vein artifact were evaluated by two experienced radiologists between different BSP-TI. Results BSP-TI 1200ms was optimal for 60-75 year-old group while 1300ms was most suitable for above 75 year-old group. Conclusion Non-contrast enhanced magnetic resonance angiography of renal artery is feasible in clinical routine practice.

关 键 词：磁共振血管造影术 肾动脉 老年人 

分 类 号：R445.2[医药卫生—影像医学与核医学]