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High-Resolution Neurovascular Imaging at 7T

Authors :
Samantha J. Ma
Lirong Yan
Xingfeng Shao
Kai Wang
Danny J.J. Wang
Source :
Magnetic Resonance Imaging Clinics of North America. 29:53-65
Publication Year :
2021
Publisher :
Elsevier BV, 2021.

Abstract

Ultrahigh field offers increased resolution and contrast for neurovascular imaging. Arterial spin labeling methods benefit from an increased intrinsic signal-to-noise ratio of MR imaging signal and a prolonged tracer half-life at ultrahigh field, allowing the visualization of layer-dependent microvascular perfusion. Arterial spin labeling-based time-resolved 4-dimensional MR angiography at 7T provides a detailed depiction of the vascular architecture and dynamic blood flow pattern with high spatial and temporal resolutions. High-resolution black blood MR imaging at 7T allows detailed characterization of small perforating arteries such as lenticulostriate arteries. All techniques benefit from advances in parallel radiofrequency transmission technologies at ultrahigh field.

Details

ISSN :
10649689
Volume :
29
Database :
OpenAIRE
Journal :
Magnetic Resonance Imaging Clinics of North America
Accession number :
edsair.doi...........6422f0cf4762880f872f37ca64cf63b3
Full Text :
https://doi.org/10.1016/j.mric.2020.09.003