I'd collect highres T1w as well and then refine the 1mm surfaces using that.
Peace,
Matt.
From: SHAHIN NASR <sha...@nmr.mgh.harvard.edu>
Date: Monday, February 25, 2013 1:39 PM
To: Freesurfer <freesurfer@nmr.mgh.harvard.edu>, Bruce Fischl
<fis...@nmr.mgh.harvard.edu>, Doug Greve <gr...@nmr.mgh.harvard.edu>
Subject: [Freesurfer] High resolution fMRI and resolution of anatomical
scans
Hi,
We are planning to collect high resolution functional MRI for a group of
subjects with voxel size smaller than 1 mm. For these subjects, we already
have reconstructed anatomical scans with 1 mm voxel size. The question is,
do we need to re-collect anatomical scans for these subjects with smaller
voxel size (e.g. 0.5 x 0.5 x 0.5) or we can still use the old anatomical
data for co-registration with freesurfer.
P.S.: We usually analyze our subjects in native space but technically we can
do this in fsaverage space. So, we only need this co-registration for
pre-processing and mapping fMRI data to fsaverage space.
Regards
--
Shahin Nasr
PhD in Cognitive Neuroscience
Martinos Imaging Center, MGH
Harvard Medical School
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