Abstract #4282
Fast variable inversion-recovery time EPI for anatomical reference and quantitative T 1 mapping
Ville Renvall 1,2 , Thomas Witzel 1,2 , Lawrence L. Wald 1,2 , and Jonathan R. Polimeni 1,2
1
Athinoula A. Martinos Center for Biomedical
Imaging, Massachusetts General Hospital, Charlestown,
MA, United States,
2
Department
of Radiology, Harvard Medical School, Boston, MA, United
States
Fast T
1
mapping
method using permuted slice acquisition order and TI
skipping on an IR EPI scan was developed. The resulting
T
1
and
T
2
*
/ spin density images were
used to synthesize inversion recovery EPI data with an
arbitrary, selectable TI. Automatic brain segmentation
and cortical surface reconstruction of the synthesized
data using FreeSurfer were successful and could serve as
basis for distortion matched anatomical reference for
functional MRI.
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