Hi - the atlases are there as a guide for what structures are where -
but they may not exactly related to a given new individual's scan.
Using the masks directly in the context of TBSS results makes some
sense, but for tractography, if you have already got your tracts, this
implied that you chose your seed/target voxels/masks carefully and so
presumably already have a strong idea of what tracts you are looking
for? So I'm not quite sure how you are wanting to then use the atlases?
Cheers.
On 19 Feb 2008, at 21:18, Lindgren, Kristen, Ann wrote:
> Hello. I am interested in using the JHU DTI-based white-matter
> atlases
> to obtain the average FA values of various tracts. I've created masks
> and gotten average FAs from our DTI using tractography, but I'm
> wondering if there is documentation on how to use the available
> atlases
> to do this. Thanks and hopefully I explained that clearly!
>
> Kristen
>
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
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