The orig.mgz is closer to the raw data than T1.mgz, but it will be different in a number of ways. First, it will be 256^3, 1mm voxel size regardless of the dimensions of the raw data. Second, it will be 8 bits (0-255) with some rescaling.
On 5/2/18 7:43 AM, C.P.E. Rollins wrote: > External Email - Use Caution > > Just to clarify, by that I mean would the NIFTI converted from orig.mgz > (with mri_convert) be different than the NIFTI produced by dcm2niix from > the raw DICOMs? > > Thanks, > Colleen > > -------- Original Message -------- > Subject: orig.mgz versus T1.mgz > Date: 2018-05-02 10:24 > From: "C.P.E. Rollins" <cp...@cam.ac.uk> > To: Freesurfer <freesurfer@nmr.mgh.harvard.edu> > > Thanks Bruce. Will the orig.mgz file be different from the raw data in > any significant way? > > Thanks again, > Colleen > > -------- Original Message -------- > Subject: orig.mgz versus T1.mgz > Date: 2018-04-30 11:54 > From: "C.P.E. Rollins" <cp...@cam.ac.uk> > To: Freesurfer <freesurfer@nmr.mgh.harvard.edu> > > Dear Freesurfer developers, > > A collaborator shared with me Freesurfer outputs, but I would like to > some analyses requiring the scans in NIFTI format. I understand > mri_convert should do the trick for this, though I was wondering whether > I should use "orig.mgz" or "T1.mgz" to convert back to the original T1 > NIFTI files. > > Many thanks, > Colleen > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
