诊断学理论与实践

诊断学理论与实践 >

2019 , Vol. 18 >Issue 1: 72 - 76

DOI: https://doi.org/10.16150/j.1671-2870.2019.01.014

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非增强磁共振血管成像在肾动脉狭窄评估方面的价值研究

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  • 上海交通大学医学院附属瑞金医院放射科，上海 200025

收稿日期: 2018-11-12

  网络出版日期: 2019-02-25

基金资助

基于MR微血管成像技术在体研究肝纤维化发展过程中血管生成的作用(2014075)

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Value of non-enhanced magnetic resonance angiography in assessing renal artery stricture

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  • Department of Radiology, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China

Received date: 2018-11-12

  Online published: 2019-02-25

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摘要

目的 评价非增强磁共振血管成像（magnetic resonance angiography, MRA）技术在评估肾动脉狭窄方面的价值。方法 对73例临床怀疑肾动脉狭窄的患者进行MRA检查，采用1.5T MRI设备结合呼吸触发技术先行非增强 MRA检查，再行增强 MRA检查。本研究以增强MRA为参考标准，对2种成像结果进行比较分析，包括图像质量、肾动脉狭窄程度评价的一致性及对肾动脉各级分支的显示情况。结果 肾动脉非增强MRA和增强MRA在图像质量方面差异无统计学意义;在肾动脉狭窄评价方面，32根肾动脉被增强MRA诊断为肾动脉狭窄，非增强MRA提示29根肾动脉狭窄，不一致的有3根。其中1根不一致的原因是由于注射对比剂后采集过早;余2根显示不一致其原因是由于呼吸不均匀而导致。除了上述3根，在评估肾动脉狭窄方面，两者间具有很好的一致性（Kappa值为0.98）;肾动脉分支显示方面，非增强MRA明显优于增强MRA（P<0.001）。结论 非增强MRA能全面显示肾动脉狭窄情况，在显示肾动脉分支方面优于增强MRA，具有重要的临床应用价值。

关键词： 肾动脉; 狭窄; 磁共振血管成像; 非增强磁共振血管成像

本文引用格式

刘方韬, 齐晓凤, 徐学勤, 黄娟, 董海鹏, 倪根雄, 周雯, 孔德艳 . 非增强磁共振血管成像在肾动脉狭窄评估方面的价值研究[J]. 诊断学理论与实践, 2019 , 18(1) : 72 -76 . DOI: 10.16150/j.1671-2870.2019.01.014

Abstract

Objective: To study the value of non-enhanced MRA in assessment of renal artery stricture. Methods: A total of 73 patients with clinically suspected renal artery stricture undergone magnetic resonance angiography were enrolled. The 1.5T MR device combined with respiratory triggering technique was used to perform non-enhanced MRA and then enhanced MRA imaging was undertaken. The two imaging results were compared and analyzed for image quality, consistency of renal artery stricture evaluation and display of branches of renal artery. Results: There was no statistically significant difference in image quality between non-enhanced MRA and enhanced MRA of renal artery.In the evaluation of renal artery stricture, the two were in good agreement (Kappa value 0.98), The non-enhanced MRA showed better renal artery branches than enhanced MRA (P<0.001). Conclusions: Non-enhanced MRA can fully display the renal artery stricture, and it is superior to enhanced MRA in displaying renal artery branches. Therefore，non-enhanced MRA is of great importance in clinical practice.

Key words： Renal artery; stricture; Magnetic Resonance Angiography; non-enhanced magnetic resonance angiography

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