Hi Dhinakaran
knowledge of surrounding structures helps disambiguate the segmentations, so I wouldn't recommend trying to segment hippocampus by itself that way. You could try pasting your manaul segs into an aseg of those subjects and retraining, but you'll need to come up with an algorithm to decide what class to assign to voxels that we call hippo but your manual segs do not.
cheers Bruce
On Sun, 17 Jun 2012, Dhinakaran Chinappen wrote:
Hi Freesurfer Experts and Advisors, Would it be possible to use different manually segmented images (of the hippocampus formation only) as a-priori maps and then use Freesurfer to automatically segment the hippocampus formation only, based on the furnished manually segmented images?
This would be relevant if the hippcampus formation needed to be automatically segmented for subjects over an age range, whereby those different manually segmented images would also be over an age range.
Thanks, Dhinakaran.