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For some reason it isn't displaying the same i/j/k ras. The T1 and the registered image (ASL) is in the same dimension/voxel sizes. The TR is different at 7ms (T1) vs ~9000ms (ASL). When I try mri_convert -tr 7 asl.nii asl.mgz, it doesn't change the incorrect i/j/k ras matrix
Victor Zeng Beth Israel Deaconess Medical Center Keshavan Lab -- ________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu on behalf of falk.luesebrink@med.ovgu.de falk.luesebrink@med.ovgu.de Sent: Thursday, May 5, 2022 4:17 AM To: freesurfer@nmr.mgh.harvard.edu freesurfer@nmr.mgh.harvard.edu Subject: [External] Re: [Freesurfer] Reversing mri_convert
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Hi Victor,
in case you used mri_convert like this only, there is no change in orientation or spacing between orig.mgz and T1.nii. So, whatever you registered to the T1.nii should also be in space of the orig.mgz.
Best,
Falk
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falk.luesebrink@med.ovgu.demailto:falk.luesebrink@med.ovgu.de https://secure-web.cisco.com/12VV1Zuktq-dOaOs2OFkciZgmD7fNFdt3i2XPDRjKwQTNpX... ________________________________ Von: freesurfer-bounces@nmr.mgh.harvard.edu freesurfer-bounces@nmr.mgh.harvard.edu im Auftrag von Zeng, Victor (BIDMC - Keshavan - Psychiatry) vzeng@bidmc.harvard.edu Gesendet: Donnerstag, 5. Mai 2022 10:09:26 An: freesurfer@nmr.mgh.harvard.edu Betreff: [Freesurfer] Reversing mri_convert
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Hi,
I convert orig.mgz -> T1.nii using mri_convert orig.mgz T1.nii
I now have something registered to the T1.nii and would like to move it back to Freesurfer space. How would you go about doing that? I am assuming I would do the inverse of the mri_convert, but I can't seem to find the option to write the matrix.
Victor Zeng Beth Israel Deaconess Medical Center Keshavan Lab --
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