非对比剂增强磁共振血管成像技术在评估移植肾血管并发症方面的研究  

Depiction of vascular complications of renal transplant:by unenhanced MR angiography using spatial labeling with multiple inversion pulses

作　　者：汤浩[1] 胡晓萌[2] 王秋霞[1] 孟晓岩[1] 王梓[1] 李建军[1] 王艳春[1] 胡道予[1] 

机构地区：[1]华中科技大学同济医学院附属同济医院放射科,武汉430030 [2]武汉市医疗救治中心消化科,430023

出　　处：《放射学实践》2015年第5期536-541,共6页Radiologic Practice

基　　金：国家自然科学基金(81271528);湖北省自然科学基金(2013CFB110);湖北省自然科学基金(2013CKB018)

摘　　要：目的:探讨基于多翻转脉冲空间标记技术(SLEEK)的非对比剂增强磁共振血管成像序列在显示移植肾血管并发症方面的价值。方法:对23例移植肾血管并发症患者行SLEEK及彩色多普勒超声扫描。由两位放射医师对SLEEK显示移植肾血管并发症情况进行评估,并将SLEEK结果与彩色多普勒超声、DSA及手术结果进行对照。结果:23例患者均成功进行了SLEEK扫描,其中移植肾动脉狭窄11例,移植肾动脉闭塞3例,移植肾动脉扭曲3例,移植肾静脉狭窄2例,动静脉瘘2例,假性动脉瘤1例,肌纤维发育不良1例。SLEEK检出了所有23例并发症,彩色多普勒超声检查出了其中19例,两者检出率差异无统计学意义(P>0.05)。结论:基于SLEEK的非对比剂增强磁共振血管成像序列无创、无辐射,在显示移植肾血管并发症方面具有很高的应用价值。Objective： This study is aimed to investigate the ability of unenhanced magnetic resonance angiography （MRA） using spatial labeling with multiple inversion pulses （SLEEK） to display the complications of transplanted renal blood vessels. Methods： Twenty-three patients with renal vascular complications after transplantation were examined with unenhanced MRA using SLEEK （SLEEK-MRA） and color Doppler ultrasonography （CDUS）. The ability of SLEEK to show these complications was evaluated in consensus by two experienced radiologists who compared the results with CDUS, DSA and operation findings. Results：Twenty-three patients successfully underwent unenhanced SLEEK-MRA, inclu- ding 11 patients with renal arterial stenosis, three with renal arterial occlusion, three with renal arterial kinking, two with re- nal venous stenosis, two with renal arteriovenous fistulas, one with pseudoaneurysms and one with fibromuscular dysplasia. All 23 patients were detected with SLEEK, whereas 19 patients were detected with CDUS. There was no statistically differences found between SLEEK and CDUS （P〉0.05）. Conclusions： Unenhanced MRA using SLEEK was a non-invasive approach and without radiation damage,it has a very high clinical value in detecting vascular complications of renal transplant.

关 键 词：移植肾 血管并发症 SLEEK 非对比剂 磁共振血管成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R699.2[医药卫生—诊断学]