Preprocessing for a TBSS asymmetries test revealed one participant’s diffusion data has a different orientation (reversed). I assume that, unlike anatomical T1 scans, diffusion-weighted data can’t be corrected at the outset (e.g. dcm2nii –r y file.nii) because the diffusion directional information would not change in tandem with the newly reoriented image, which would disrupt directional information (e.g. FA). Is this correct or can this participants diffusion data set reoriented to be consistent with the other diffusion-weighted data sets.
Any feedback would be greatly appreciated.
Charlie
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