Hello all,
Is there any atlas to which these tracs are referenced? For cortical
anatomical boundaries there is broad consensus and a published
referenced atlas, which makes Freesurfer's automatic parcellation of
cortical regions an excellent tool. But there is not (as is often
assumed) as broad a consensus on white matter tracts (e.g., there is no
middle longitudinal fasciculus in the recent Oishi et al. white matter
atlas and many would argue it doesn't exist; the existence of separate
inferior longitudinal fasciculus and inferior occipitofrontal fasciculus
is disputed; Catani's arcuate fasciculus is based on one paper etc.). Is
it such a good idea to go automatically identifying white matter tracts
without saying how they are identified?
Anthony
On 6/15/11 12:07 PM, Seán Froudist Walsh wrote:
Hi Anastasia,
Thanks for getting back to me and well done on making a very nice
program. The first tracts I would like to have are the optic
radiations, but there are others that would be nice to include: a
three part arcuate fasiculus (a la Catani et al., 2005) rather than a
2 part one, Fornix, anterior commissure.
If I were to manually do the dissections for the 33 subjects, what
would be the most Tracula compatible way of doing it? I normally use
TrackVis but I figure making all of the file conversions might be a
nightmare. Which program was used in the original virtual dissections?
Any further suggestions? Perhaps some of these tracts are included but
I've missed them.
Sean
On 15 June 2011 08:37, Anastasia Yendiki <ayend...@nmr.mgh.harvard.edu
<mailto:ayend...@nmr.mgh.harvard.edu>> wrote:
Hi Seán - Which tracts do you want to add? Our existing tracts
have been labeled on 33 healthy subjects. It's certainly possible
to include new tracts in the atlas but someone has to do the
labeling on the same or a similar set of subjects.
a.y
On Wed, 15 Jun 2011, Seán Froudist Walsh wrote:
Hi FreeSurfing Gurus,
I would like to add some new tracts to the Tracula pipeline
using my own
regions of interest. What would be the best way to do this?
All the best and many thanks in advance,
Seán
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