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Hello, I have two sets of diffusion data for each of my participants (each set is 32 directions). If I want to combine them before running dtifit is the following code correct? In particular, do I need to do anything in between running eddy_correct and bet to somehow average the two acquisitions?? fslmerge -t combo.nii.gz data1.nii.gz data2.nii.gz eddy_correct combo 0 fslroi data nodif 0 1 bet nodif nodif_brain slicer nodif nodif_brain -a nodif_overlay.png fslmaths nodif_brain -bin nodif_brain_mask dtifit --data=data --out=dti --mask=nodif_brain_mask --bvecs=bvecs --bvals=bvals Any and all help greatly appreciated!! Best, Sarah