Hi Jay,

You might not have this file/package, but it looks to me like there is a
file of the same voxel dimensions, etc. as the T1w_hires.nii.gz:

Structural_preproc/T1w/991267/mri/aparc.a2009s+aseg.mgz

wb_command -nifti-information -print-header
Structural_preproc/T1w/aparc.a2009s+aseg.nii.gz

native endian: true
sizeof_hdr: 348
magic: n+1
datatype: 16
bitpix: 32
dim[0]: 3
dim[1]: 260
dim[2]: 311
dim[3]: 260
pixdim[0]: -1
pixdim[1]: 0.7
pixdim[2]: 0.7
pixdim[3]: 0.7
vox_offset: 25376
scl_slope: 1
scl_inter: 0
sform_code: 1
srow_x: -0.7 0 0 90
srow_y: 0 0.7 0 -126
srow_z: 0 0 0.7 -72
qform_code: 1
quatern_b: 0
quatern_c: 1
quatern_d: 0
qoffset_x: 90
qoffset_y: -126
qoffset_z: -72
xyzt_units: 10
intent_code: 0
intent_name:
1 extension:

If you don't want to download that package, you might be able to grab just
that file via XNAT.

If you just want to view the parcellation as an overlay, though, you can
already do so without resampling the parcellation, e.g.:

tkmedit -f T1w_hires.nii.gz -aparc+aseg
(assuming you have freesurfer installed)

If you want to use aparc.a2009s+aseg.mgz, then you need software that
reads mgz (e.g., freesurfer, 3D Slicer).  But there are also NIFTI
versions of the parcellation that will work with viewers like AFNI,
fslview, and wb_view.  Generally these don't require the overlay and
underlay to be in the same grid (e.g., structural underlay may be higher
res than functional overlay).  Provided the headers are good, they view
fine together.

Donna


> Dear HCP team,
>
> We are currently using the S500 preprocessed extended dataset and we were
> wondering if we can obtain a hires version of 'aparc.a2009s+aseg.nii.gz'
> file (So that it would have compatible overlay with 'T1_hires.nii.gz').
> Are there any methods (ex. Freesurfer commands) that you could suggest for
> us?
>
> Thank you,
>
> Jay
>
> _______________________________________________
> HCP-Users mailing list
> [email protected]
> http://lists.humanconnectome.org/mailman/listinfo/hcp-users
>


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