Try mri_coreg. You can run it with multiple cores with --threads N
On 6/17/2021 8:48 AM, Marina Fernández wrote:
External Email - Use Caution Dear experts, I would like to co-register T2 to T1 robustly, both images have a resolution of 0.65mm3. Firstly, I tried bbregister with the '--init-rr' flag, but this function doesn't allow to keep the native voxel resolution (i.e., 0.65mm3), changing it to 1 mm. As I wanted to maintain the native voxel resolution , I tried the mri_robust_register function (corresponding to the '--init-rr' flag) as explained in the help associated with this function, but this process took thirteen hours: EXAMPLE 4. Robust cross modal registration: mri_robust_register --mov movT2.mgz --dst dstT1.mgz --satit --iscale --mapmov T2_to_T1.mgz --lta T2_to_T1.lta --cost ROBENT --entradius 2 --entcorrection --weights T2_to_T1_weights.mgz I also tried the standard cross modal registration. The process didn't take as long, but the result was not as accurate as bbregister. EXAMPLE 5. Standard cross modal registration: mri_robust_register --mov movT2.mgz --dst dstT1.mgz --mapmov T2_to_ T1.mgz --lta T2_to_T1.lta --cost NMI Could you suggest me how to accurately register T2 to T1 images maintaining the native voxel resolution in a shorter time? Thank you very much in advance. Best, Marina _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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