Hi Cícero
there's no easy answer for this question. If one of them is seriously
motion corrected you are probably better off only using the other, but
it depends on what coil you used, what field strength, voxel res, etc....
Basically if one has sufficient CNR than it can be better than two,
particularly if the 2nd is corrupted. In general we don't require 2 images
cheers
Bruce
On Wed, 21 Mar 2012, Cícero Nardini Querido wrote:
Hi everyone,
I am going to use FreeSurfer to analyze cortical thickness in some
structural images. In order to generate the individual output, Freesurfer
asks for 2 different input images. If I have two acquisitions from the same
subject, but they present different degrees of quality (such as movement
index), would it be better to use just one of them? Is there any problem in
doing that? Also, is there a reliable index to assess the images level of
movement before I use them on FreeSurfer?
Thanks for that!
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