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Abstract #2942

Radial K-Space Sampling for 3D Fat-Suppressed Contrast-Enhanced Imaging of the Liver During Free Breathing

Hersh Chandarana1, Andrew B. Rosenkrantz1, Ruth P. Lim1, Danny Kim1, David I. Mossa1, Konstantinos Arhakis1, Berthold Kiefer2, Tobias Kai Block2, Vivian S. Lee1

1Department of Radiology, NYU Langone Medical Center, New York, NY, United States; 2MR Application & Workflow Development, Siemens AG Healthcare Sector, Erlangen, Germany

T1-weighted fat-saturated three-dimensional volumetric interpolated examination (VIBE) is the conventional sequence used for post-contrast liver MR examination. In our patient population, subjects frequently struggle to breath-hold for more than 10 seconds, resulting in decreased image quality. Purpose of our study was to compare image quality of free breathing radially sampled k-space VIBE to conventional breathhold VIBE (BH VIBE) and free-breathing (FB) conventional VIBE with multiple averages. Our results demonstrate the utility of a 3D radial VIBE technique for post-contrast liver MRI performed during free-breathing which is comparable in image quality to BH VIBE and significantly better than conventional FB VIBE.