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Abstract #1566

Large-FOV High Temporal Resolution Free-Breathing MR Urography using a Continuous Golden-Angle Radial Acquisition Scheme with Compressed Sensing Reconstruction: Feasibility and Comparison with Standard Cartesian Acquisition

Nainesh Parikh 1 , Justin Ream 1 , Hoi Cheung Zhang 1 , Tobias Block 2 , Hersh Chandarana 1 , and Andrew Rosenkrantz 1

1 Radiology, NYU School of Medicine, New York, NY, United States, 2 Radiology, Center for Advanced Imaging Innovation and Research NYU School of Medicine, New York, NY, United States

We used a novel Golden-angle Radial Sparse Parallel (GRASP) sequence to perform free-breathing contrast-enhanced MR-urography with retrospective reconstruction of dynamic large-FOV images of the kidneys, ureters, and bladder at high spatial and high temporal (between 1-4 seconds) resolution. This technique provided visualization of the entire urothelial system, including of the bladder mucosa before gadolinium excretion, with reduced motion and ghosting artifact compared with a standard DCE sequence.

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