Wow, longitudinal segmentation is absolutely awesome! It reduced our
measurement error by more than 30%. I can't wait when the hippocampal
longitudinal segmentation is ready.
By the way, I want to run (cross-sectional) hippocampal subfields on
longitudinal data using additional T2 with lower resol
Dear Mojmir,
using ~400 subjects, we found that the subfield module was a bit better than
the ASEG volumes at discriminating Alzheimer’s patients from controls (see the
Neuorimage paper). But, in any case, the difference is small.
Regarding longitudinal segmentation: we just got a paper about thi
Hi Juan,
Thanks! You're right, they really are tightly correlated (although their
absolute values differ by 30%). We tried it on couple of subjects, but
didn't find subfields to be significantly better than aseg stats though. By
the way, is Freesurfer capable of using multiple scans from the same
Hi Mojmir,
ASEG typically gives a larger estimate of the volume, though highly correlated
with that from the subfield package. We have found the measurements from the
subfield package to be a bit more reliable, though.
Cheers,
Eugenio
Juan Eugenio Iglesias
Translational Imaging Group
University
