Thanks for getting back, Doug. I understand - but if there are two scans, aren't there two scanner RAS's since the head presumably moved at least a little from one to the other or the scans could have been done on different scanners?
Don ________________________________________ From: freesurfer-boun...@nmr.mgh.harvard.edu [freesurfer-boun...@nmr.mgh.harvard.edu] on behalf of Douglas N Greve [gr...@nmr.mgh.harvard.edu] Sent: Friday, November 11, 2016 3:22 PM To: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] mri_info --tkr2scanner result for run with multiple input scans -tkr2scanner gives the transform that takes "tkregister RAS" and converts it to scanner RAS. "tkregisterRAS" is the RAS system used by surfaces (it, a vertex xyz is in tkregisterRAS). See http://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems On 11/10/2016 09:33 PM, Krieger, Donald N. wrote: > > If I run recon-all with both a T1 and a T2 scan and switch t2pial, > does mri_info –tkr2scanner give me the transform to the T1 scanner > frame of reference? > > And if I run recon-all with many T1’s , what does mri_info > –tkr2scanner give me then? > > Thanks - Don > > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2 www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ _______________________________________________ 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. _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
