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Abstract #2953

Highly Efficient Single-Point Dixon-Based Fat Suppression for Ultrashort Echo Time Double Echo Steady State (UTE-DESS) Imaging of the Knee Joint

Hyungseok Jang1, Yajun Ma1, Michael Carl2, Saeed Jerban1, Eric Y Chang1,3, and Jiang Du1
1University of California, San Diego, San Diego, CA, United States, 2GE Healthcare, San Diego, CA, United States, 3Veterans Affairs San Diego Healthcare System, San Diego, CA, United States

In this study, we explored the feasibility of applying single-point Dixon (spDixon)-based fat suppression to a novel ultrashort echo time-based double echo steady state (UTE-DESS) sequence for highly efficient morphological musculoskeletal (MSK) imaging. Compared to the two-point Dixon-based approach used with conventional UTE-DESS MSK imaging which requires two echoes for fat-water separation, we demonstrated a new technique which requires only a single image in, removing the need for additional data acquisitions. The feasibility and efficacy of our approach were demonstrated in human knee joints.

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