there is a lot of overlap but they are not quite the same. I think 30-35 of
them are the same, but a few are different.
On Wed, 22 Apr 2009, Michael Harms wrote:
And just to bring this discussion full circle, how does the training set
for the subcortical segmentation relate?? Is the training set (and
associated manual labeling) that is used for the subcortical
segmentation composed of the same 39 subjects used for both the current
spherical template and the Desikan cortical atlas?
thanks,
Mike H.
On Wed, 2009-04-22 at 12:55 -0400, Bruce Fischl wrote:
Hi Jennifer,
the spherical stuff has nothing to do with the CMA. And in fact the
spherical registration itself is not based on any manual labelings, just
estimates of cortical geometry from a set of training subjects. The
cortical parcellations do depend on manual labelings, but this is also
not the CMA. Rather there are two sets - one done by Rahul Desikan (39
subjects I think) and the other by Christophe Destrieux (12 or 14
subjects). The current spherical template we use is from the same 39 that
Rahul labeled.
cheers,
Bruce
On Wed, 22 Apr 2009, Juranek, Jenifer wrote:
Is any information about the manually-parcellated (CMA) training set used to
create the spherical template used in fsv4.*? The information reported in
Cerebral Cortex (2004) 14(1):11-22 reports 36 MRI volumes from an ongoing study.
Does this sound about right?
Or have there been any updates to the spherical template since then?
Many Thanks for any info,
Jenifer
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