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
Center for Cognitive and Neurobiological
Imaging, Stanford University, Stanford, CA, United
Engineering, Stanford University, Stanford, CA, United
Sciences Laboratory West, GE Healthcare, Menlo Park, CA,
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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