High-Resolution Neurovascular Imaging at 7T: Arterial Spin Labeling Perfusion, 4-Dimensional MR Angiography, and Black Blood MR Imaging.
High-Resolution Neurovascular Imaging at 7T: Arterial Spin Labeling Perfusion, 4-Dimensional MR Angiography, and Black Blood MR Imaging.
复制标题
7T高分辨率神经血管成像:动脉自旋标记灌注、4维磁共振血管成像和黑血磁共振成像。
DOI:
10.1016/j.mric.2020.09.003
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发表时间:
2021-03
影响因子:
1.6
通讯作者:
Wang DJJ
中科院分区:
文献类型:
--
作者:
Shao X;Yan L;Ma SJ;Wang K;Wang DJJ
Ultrahigh field (UHF) offers increased resolution and contrast for neurovascular imaging. Arterial spin labeling (ASL) methods benefit from an increased intrinsic SNR of MRI signal as well as a prolonged tracer half-life (blood T1) at UHF, allowing the visualization of layer dependent microvascular perfusion. ASL based time-resolved 4-Dimensional MR angiography (4D MRA) at 7T provides detailed depiction of both the vascular architecture and dynamic blood flow pattern with both high spatial and temporal resolutions. In addition, high resolution black blood MRI at 7T allows detailed characterization of small perforating arteries such as lenticulostriate arteries. All techniques benefit from advances in parallel RF transmission (pTx) technologies at UHF.
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