对照CTA评价SLEEK序列显示高血压患者肾动脉及其病变的能力  

Evaluation of renal artery with non-contrast magnetic resonance angiography for hypertension subjects: A SLEEK sequence comparison with CTA

作　　者：廖云杰[1] 裴贻刚[2] 李利丰 王维[1] 

机构地区：[1]中南大学湘雅三医院放射科,长沙410013 [2]中南大学湘雅医院放射科,长沙410008

出　　处：《磁共振成像》2017年第10期760-766,共7页Chinese Journal of Magnetic Resonance Imaging

摘　　要：目的评估多翻转脉冲空间标记技术的非对比剂增强磁共振血管成像序列(non-contrast enhanced magnetic resonance angiography spatial labeling with multiple inversion pulses,NCE-MRA SLEEK)对肾动脉及肾动脉病变的显示能力。材料与方法收集中南大学湘雅医院2015年7月至2016年8月行NCE-MRA SLEEK检查的高血压患者,NCE-MRA SLEEK显示肾血管及肾血管病变的能力由两名副主任医师进行评估。所有患者接受SLEEK后10 d内行CT血管造影(CT angiography,CTA)检查,以CTA显示肾动脉的结果为对照来评估NCEMRA SLEEK显示肾血管及肾血管病变的准确性。结果 52例患者中共有46例接受了CTA和NCE-MRA SLEEK两项检查。NCE-MRA SLEEK显示了109根肾动脉(CTA:114根),其中正常肾动脉77根(CTA:82根),肾动脉狭窄(renal artery stenoses,RAS)28根(CTA:26根),肌纤维发育不良4根(CTA:6根);在显示肾动脉分支方面,NCE-MRA SLEEK则明显优于CTA(P<0.05)。NCE-MRA SLEEK与CTA在评估RAS程度方面具有很好的相关性(Rs=0.85,P=0.001)。结论 NCEMRA SLEEK能较好地显示肾动脉及准确评价肾动脉狭窄,比CTA能更加清晰地显示肾动脉分支,它可以替代CTA成为筛查肾动脉病变的一种有效检查方法。Objective： To explore the ability of NCE-MRA SLEEK（a non-contrast enhanced magnetic resonance angiography using spatial labeling with multiple inversion pulses） in showing renal arteries and displaying renal artery disease in those patients with hypertension. Materials and Methods： NCE-MRA SLEEK was performed for evaluating the ability of showing renal arteries and presenting renal artery disease in those hypertension patients. The renal arteries were assessed by two experienced radiologists. All patients performed computed tomography angiography（CTA） within 10 days after NCE-MRA SLEEK. The ability of displaying the renal arteries and delineating renal artery disease with NCE-MRA SLEEK were assessed with the comparison of CTA results. Results： NCE-MRA SLEEK was successfully undergone in 46 out of 52 patients. In these 46 hypertension patients, a total of 109 renal arteries were found with NCE-MRA SLEEK（CTA：114）, including 77 normal（CTA： 82）, 28 renal artery stenoses（RAS）（CTA： 26）, 4 fibromuscular dysplasia（FMD）（CTA： 6）. The ability of presenting the main renal artery between SLEEK and CTA was coincidence with an exception of not displaying 5 renal artery on NCE-MRA SLEEK; For presenting segmental branches in the renal parenchyma, NCE-MRA SLEEK was superior to CTA（P=0.001）. The excellent correlation was found between NCE-MRA SLEEK and CTA in displaying the RAS degree（Rs=0.85, P〈0.05）. Conclusion： NCE-MRA SLEEK appears a good diagnostic method for presenting renal artery and assessing renal artery disease, especially for segmental branches in the renal parenchyma. It can be as an CTA alternative choice for screening renal artery diseases.

关 键 词：高血压 肾动脉 肾动脉病变 CT血管造影 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R544.1[医药卫生—诊断学]