Hi Ali,

Try using the –cm switch for mri_convert. This should conform the input not to 1mm iso and 256x256 matrix size, but will conform to the minimum voxel size. The result should be an image having the correct resolution and matrix size. Though you should keep in mind that you will have 320 slices afterwards.

Regards,

Falk

From: freesurfer-bounces@nmr.mgh.harvard.edu [mailto:freesurfer-bounces@nmr.mgh.harvard.edu] On Behalf Of Al-Radaideh Ali
Sent: Friday, May 15, 2009 3:12 PM
To: freesurfer@nmr.mgh.harvard.edu
Subject: [Freesurfer] data conversion

 Dear FreeSurfer experts,

I used 0.6mm isotropic resolution MPRAGE ( matrix size 320 x 320 ) and 260 slices in freesurfer. The output (.mgz) has a different resolution and matrix size (1mm isotropic resolution and 256 x 256 matrix size). I used mri_convert to convert the output image from mgz to analyze. is there any way I can get back to the original resolution and matrix size, please?

Thanks in advance

Ali

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