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Time‐resolved contrast‐enhanced MR angiography with single‐echo Dixon fat suppression

Content Provider	Scilit
Author	Stinson, Eric G. Trzasko, Joshua D. Campeau, Norbert G. Glockner, James F. Huston, John Young, Phillip M. Riederer, Stephen J.
Copyright Year	2018
Description	Journal: Magnetic Resonance in Medicine Dixon-based fat suppression has recently gained interest for dynamic contrast-enhanced MRI, but multi-echo techniques require longer scan times and reduce temporal resolution compared to single-echo alternatives without fat suppression. The purpose of this work is to demonstrate accelerated single-echo Dixon imaging with high spatial and temporal resolution. Real-valued water and fat images can be obtained from a single measurement if the shared initial phase and that due to $ΔB0 are assumed known a priori. An expression for simultaneous sensitivity encoding (SENSE) unfolding and fat-water separation is derived for the general undersampling case, and simplified under the special case of uniform Cartesian undersampling. In vivo experiments were performed in extremities and brain with SENSE acceleration factors of up to R = 8. Single-echo Dixon reconstruction of highly undersampled data was successfully demonstrated. Dynamic contrast-enhanced water and fat images provided high spatial and temporal resolution dynamic images with image update times shorter than previous single-echo Dixon work. Time-resolved contrast-enhanced MRI with single-echo Dixon fat suppression shows high image quality, improved vessel delineation, and reduced sensitivity to motion when compared to time-subtraction methods.$
Related Links	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6097950/pdf
Ending Page	1567
Page Count	12
Starting Page	1556
e-ISSN	15222594
DOI	10.1002/mrm.27152
Journal	Magnetic Resonance in Medicine
Issue Number	4
Volume Number	80
Language	English
Publisher	Wiley-Blackwell
Publisher Date	2018-10-01
Access Restriction	Open
Subject Keyword	Journal: Magnetic Resonance in Medicine Radiology, Nuclear Medicine and Imaging Contrast‐enhanced Mr Angiography Constrained Phase
Content Type	Text
Resource Type	Article

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