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Abstract #0440

Fast T 1 Mapping Using Slice-Shuffled Simultaneous Multi-Slice Inversion Recovery EPI

Hua Wu 1 , Robert F Dougherty 1 , Adam B Kerr 2 , Kangrong Zhu 2 , Matthew J Middione 3 , and Aviv Mezer 4

1 Center for Cognitive and Neurobiological Imaging, Stanford University, Stanford, CA, United States, 2 Electrical Engineering, Stanford University, Stanford, CA, United States, 3 Applied Sciences Laboratory West, GE Healthcare, Menlo Park, CA, United States, 4 Psychology, Stanford University, Stanford, CA, United States

T1 mapping provides useful information for quantitative MR. Gold-standard method using inversion recovery spin echo sequence is robust but slow. EPI readout together with simultaneous multi-slice excitation can greatly accelerate the acquisition, and using a slice-shuffled method can accelerate the sampling of the T1 recovery. Here we test and validate fast T1 mapping methods using a combination of simultaneous multi-slice excitation to accelerate the cross-slice acquisition, in-plane acceleration to shorten the readout, and slice-shuffling to achieve rapid T1 recovery sampling.

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