On Thursday, October 2, 2003, at 10:26 AM, Carsten Poppinga wrote:
hi,
i've got a small question concerning surefit error correction manually:
how is it possible that i've corrected handles to a total number of
less
than zero?
The handle-counting algorithm implemented in SureFit occasionally
yields a negative handle count for particular voxel geometries.
Initial efforts to correct the glitch in the algorithm were not
successful, and it was put on a back burner because in practice it
rarely causes a problem.
and i've got a big question concerning MRI pulse sequences to get
useful
results for SureFit after:
is there a appropriate sequences and what are recommended TRs and TEs,
flip angles to get high resolution structural images?
Any pulse sequences that yield good contrast between white matter
(bright), gray matter (intermediate), and CSF (dark) should work ok for
SureFit. Our lab does not have expertise in the wizardry of MRI
pulse-sequencing, so I would seek the advice of others on that score.
D Van Essen
