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Abstract #1249

Three-Dimensional Ultrashort Echo Time Cones Actual Flip Angle Imaging with Variable Repetition Time (3D UTE-Cones AFI-VTR) for Accurate T1 mapping of Short T2 Tissues

Yajun Ma1, Xing Lu1, Michael Carl2, Yanchun Zhu1, Nikolaus M Szeverenyi1, Graeme M Bydder1, Eric Y Chang1,3, and Jiang Du1

1University of California, San Diego, San Diego, CA, United States, 2GE Healthcare, San Diego, CA, United States, 3VA San Diego Healthcare System, San Diego, CA, United States

To overcome the challenges (i.e. fast signal decay and low excitation efficiency) which would other render T1 measurements inaccurate for short T2 tissues, we propose a new approach by combining 3D UTE-Cones the actual flip angle imaging (AFI) with UTE-Cones variable repetition time (VTR) (3D UTE-Cones-AFI-VTR) method, where the identical RF pulses and flip angles are used for signal excitation in both sequences.

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