Abstract #0958
Single-Spin Echo Multiband Diffusion Imaging with Slice Select Gradient Reversal
Matthew J. Middione 1 , Hua Wu 2 , Robert F. Dougherty 2 , Kangrong Zhu 3 , Adam B. Kerr 3 , and John M. Pauly 3
1
Applied Sciences Laboratory West, GE
Healthcare, Meno Park, CA, United States,
2
CNI,
Stanford University, Stanford, CA, United States,
3
Electrical
Engineering, Stanford University, Stanford, CA, United
States
Echo planar imaging (EPI), especially single shot EPI,
is the method of choice for diffusion MRI (dMRI) due to
its short scan time and motion insensitivity. However,
it is sensitive to chemical-shift artifacts due to the
low bandwidth in the phase-encoding direction, which
requires the use of efficient fat suppression. Herein we
analyze the effects of removing chemical shift artifacts
with different fat saturation and suppression techniques
for single-spin-echo, dual-spin-echo, and multiband
imaging. We propose a single-spin-echo dMRI sequence
using multiband imaging and slice select gradient
reversal to provide efficient fat suppression,
comparable SNR, and reduced scan time.
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