I don't think robust register will work as that assumes that the modalites are the same. You can try using mri_coreg, which you can find here:

ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/mri_coreg

On 09/08/2016 03:51 PM, Frank Robert wrote:

Hello FreeSurfer expert

I want to use registration tools of FreeSurfer to register arterial spin labeling (ASL) images to DWI images in stroke study. Is there any material to talk about this topic?

I use mri_robust_register to register 8 slice ASL images to 28 slices DWI images, Attached is the images I got. After the registration, the orientation is different. https://surfer.nmr.mgh.harvard.edu/fswiki/mri_robust_register

Does anyone as suggestion?

Frank Yu

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