That file is a cifti file, as denoted by the two-part ".dlabel.nii" extension, more information here:
https://wiki.humanconnectome.org/display/PublicData/HCP+Users+FAQ#HCPUsersFAQ-1.Whatare*dtseries.nii,*.dconn.nii,*dlabel.nii,*.dscalar.niifiles ? For volume files, we almost always compress them, resulting in a file that ends in ".nii.gz". We recommend using surface-based ROIs when doing cortical tractography, and using volume seed masks only for subcortical seeds, but someone else will have to answer this part in detail, as I haven't run tractography. Tim On Mon, Mar 13, 2017 at 2:29 AM, Govinda Surampudi < [email protected]> wrote: > Hi all, > I am trying to run tractography on a single subject's bedpostx data to > generate structural connectivity matrix. Therefore I require a NIFTI format > parcellation file for a seed-mask which covers all ROI's. I have tried the > following parcellation file provided in : https://balsa.wustl.edu/file/ > show/3VLx. However running probtrackx2 with that as seed-mask shows up > the following error : > ************************************************************ > ************************************************************** > " ERROR (nifti_image_read): cannot create nifti image from header > '/users/govinda_s/subjects/Q1-Q6_RelatedValidation210. > CorticalAreas_dil_Final_Final_Areas_Group_Colors.32k_fs_LR.dlabel.nii'" > ************************************************************ > ************************************************************** > Is the parcellation file correct for use as a seed-mask ? If not, it would > be helpful if you could provide me with a seed-mask parcellation file for > all ROI's. > Thanks in advance, > Regards, > Govinda > _______________________________________________ > HCP-Users mailing list > [email protected] > http://lists.humanconnectome.org/mailman/listinfo/hcp-users > _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
