Abstract #4431
Diffusion tensor imaging of porcine spinal cord at 7 Tesla using readout-segmented EPI, GRAPPA and a distortion correction tool
Aurlien Massire 1,2 , Pierre-Henri Rolland 3 , Maxime Guye 1,2 , and Virginie Callot 1,2
1
CRMBM UMR 7339 CNRS, Aix-Marseille
Universit, Marseille, France,
2
CEMEREM,
Hpital de la Timone, Ple dimagerie mdicale, AP-HM,
Marseille, France,
3
Experimental
Interventional Imaging Laboratory, Aix-Marseille
Universit, Marseille, France
This work provides preliminary diffusion tensor imaging
(DTI) results on an ex vivo porcine spinal cord on a
whole-body 7 Tesla. A readout-segmented echo-planar
imaging sequence using parallel imaging was optimized to
minimize magnetic susceptibility-induced image
distortions. As severe distortions occurred, an
additional post-processing correction tool was
subsequently run on two independent data sets acquired
with opposed phase-encode directions. Successful and
robust distortion corrections were observed along the
ten slices, leading the way to in vivo human spinal cord
DTI.
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