Abstract #2997
Improving cortical tractography using double inversion recovery
Hamied A Haroon 1 , Claude J Bajada 2 , Hojjatollah Azadbakht 1 , and Sha Zhao 1
1
Centre for Imaging Sciences, The University
of Manchester, Manchester, England, United Kingdom,
2
School
of Psychological Sciences, The University of Manchester,
Manchester, England, United Kingdom
If CSF is not correctly masked out in high
angular-resolution diffusion images (HARDI) then
tractography can generate spurious and random anatomical
connections outside of the brains parenchyma, via
voxels containing CSF. We present a method based on
double inversion recovery (DIR) to segment and mask out
CSF efficiently and improve cortical tractography. DIR
data are acquired at the same resolution and geometry as
HARDI data, and therefore makes DIR an ideal technique
to mask out CSF in HARDI data as they are in the same
space and the voxels have the same partial volume
effects.
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