Kontrastmittelfreie Magnetresonanzangiographie
Kontrastmittelfreie Magnetresonanzangiographie
复制标题
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:
影响因子:
--
通讯作者:
Prof. Dr. M. Bock
中科院分区:
文献类型:
--
作者:
Prof. Dr. M. Bock
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.