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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