Hi Zuzana
1. the subcortical segmentations are based on the protocol defined by the
Center for Morphometric Analysis at MGH, so you will need to look at their
papers for e.g. hippocampus/amygdala segmentations
2. You should check with the CMA, but I believe it refers to cases with a
cavum septum pellucidum.
3. The GCA is based on 40 manually labeled brain volumes, and the DK and
Destrieux atlases are based on manually labeled surfaces.
4. The bankssts is a small region in the superior temporal sulcus where Ron
Killiany found prominent AD effects. You should be able to find his paper
on the topic with Marilyn Albert.
cheers
Bruce
On Wed, 24 Jul 2013, Zuzana Nedelska wrote:
Hello,
I have attended short FSL/FreeSurfer course in New Zealand last year and
have subscribed for mailing list, but in spite of all that I would I would
appreciate very much to know.
1.) 1.)how GCA atlas that is used by FreeSurfer defines boundaries of
subcortical volumes (especially amygdala and hippocampus). I work in Mayo
Clinic Center for Advanced Imaging Research now and I need to know these
details (if possible) this for publication methods. We use and cite
FreeSurfer often, but never went into details like this.
2.) 2.)What is ment by region of ‘5th ventricle’ in FS aseg.stats outputs
and LUTs color coding table? From anatomical point of view, I am not sure
what 5th ventricle is
3.) 3.)Do I correctly understand that subcortical segmentation is based
on manually labeled GCA atlas, and cortical parcellation is based either on
Desikan-Killiany atlas with 33 ROIS/hemisphere, or Destrieux atlas with 73
ROIs/hemisphere?
4.) 4.)What is cortical region named ‘bankssts’ in Desikan-Killiany
atlas?
I would greatly appreciate your reply or suggestion where to find these
information ASAP.
Thank you,
Zuzana Nedelska
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