Kontrastmittelfreie Magnetresonanzangiographie

Kontrastmittelfreie Magnetresonanzangiographie
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自由磁血管造影检查

DOI:
10.1007/s00117-019-0534-5
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发表时间:
2019
期刊:
Der Radiologe
影响因子:
--
通讯作者:
Prof. Dr. M. Bock
Prof. Dr. M. Bock
中科院分区:
--
文献类型:
--
作者:
Prof. Dr. M. Bock

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中文背景:在磁共振血管造影术中应尽量减少磁共振成像(MRI)造影剂的使用。目的:用于MR血管造影的现有原生MRI技术概述材料和方法:天然MRI血管造影术利用了这样一个事实,即不饱和流动血液相对于静态组织是高信号的(飞行时间MRA),血流诱导可检测的相移(相位对比MRA),通过选择性反转的标记可以动态地对丸剂通道成像,(动脉自旋标记)以及存在利用血液的对比特性的特殊MRI序列。结论:如果选择适当,原生MRI血管造影术可以可靠地描绘血管,如脑动脉和冠状动脉,并可以提供有关血流动力学的其他信息。
English Background: The use of magnetic resonance imaging (MRI) contrast agents should be minimized in MR angiography. Objective: Overview of existing native MRI techniques for MR angiography Material and methods: Native MRI angiography uses the fact that unsaturated flowing blood is hyperintense to static tissue (time-of-flight MRA), that blood flow induces a detectable phase shift (phase contrast MRA), that labeling by selective inversion can dynamically image a bolus passage (arterial spin labeling) and that special MRI sequences exist which utilize the contrast properties of blood. Conclusion: Native MRI angiography, if properly selected, can reliably delineate vessels such as cerebral arteries and coronary arteries and can provide additional information about the flow dynamics.