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 Chang^1,3, 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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