The original image was 1mm isotropic. Does MRIConvert not interpolate the image if it is not necessary?
Thanks, Matt. -----Original Message----- From: Bruce Fischl [mailto:fis...@nmr.mgh.harvard.edu] Sent: Sunday, August 23, 2009 6:22 PM To: <m...@ma-tea.com> Cc: <freesurfer@nmr.mgh.harvard.edu> Subject: Re: [Freesurfer] Conversion of wmparc.mgz to Original Volume Space without Resampling It depends on the resolution. On Aug 23, 2009, at 6:53 PM, "Matt Glasser" <m...@ma-tea.com> wrote: > Hi Bruce, > > Presumably all that was done to the volume when it was imported was > that > some zero padding around the sides was added to make it 256x256x256 > and the > data was reordered. This should not require interpolation to undo, > right? > > Thanks, > > Matt. > > -----Original Message----- > From: Bruce Fischl [mailto:fis...@nmr.mgh.harvard.edu] > Sent: Sunday, August 23, 2009 5:47 PM > To: Matt Glasser > Cc: freesurfer@nmr.mgh.harvard.edu > Subject: Re: [Freesurfer] Conversion of wmparc.mgz to Original > Volume Space > without Resampling > > Hi Matt, > > you can give a -rl <volume name> switch to "reslice like" a template > volume. For a parcellation you'll want -interp nearest (or something > like > that) also. > > cheers, > Bruce > On Sun, 23 Aug 2009, Matt Glasser wrote: > >> I am curious about how to use mri_convert to convert wmparc.mgz >> back to > the >> space that the original nii.gz volume that I gave FreeSurfer was in > without >> resampling for further analysis with FSL. The volume I imported was >> 176x208x176, and oriented xorient: Left to Right, yorient: >> Posterior to >> Anterior, and zorient: Inferior to Superior. When I run mri_convert >> wmparc.mgz wmparc.nii.gz I get a file that is 256x256x256, and >> oriented >> xorient: Right to Left, yorient: Superior to Inverior, and zorient: >> Posterior to Anterior. How do I use mri_convert to convert wmparc >> to the >> original space without resampling? >> >> >> >> Thanks, >> >> >> Matt. >> >> > > > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
