Hello,
The difference in storage order shouldn't matter ( I am assuming the patient rsfmri sform matches the qform ) as the lower level outputs will be displayed in native space ( labelled to avoid LR ambiguity ) and any higher-level analyses will register all subjects to standard space, at which point the original orientation shouldn't matter.
Hope this helps,
Kind Regards
Matthew
> Hello FSL-ers,
> I have a question on using this command.
>
> We are doing a collaboration with another research lab and they have shared their data with us. There are 2 groups of data (Control and patients).
>
> For the structral AND resting state fmri files in control group, fslhd gives
> sform/ qform as:
> sform_xorient Right-to-Left
> sform_yorient Posterior-to-Anterior
> sform_zorient Inferior-to-Superior
>
>
> Now for the patient data,struct files have this info for sform/qform:
> sform_xorient Left-to-Right
> sform_yorient Posterior-to-Anterior
> sform_zorient Inferior-to-Superior
>
> But the rsfmri shows qform to be:
> qform_xorient Right-to-Left
> qform_yorient Posterior-to-Anterior
> qform_zorient Inferior-to-Superior
>
>
> 1. Will the analysis vary when we just analyse the data without changing anything.
> 2. If I use fslreorient2std, will that make any difference to the analysis. I read in the FSL webpage that this command does not realign, but just change the labels to simply match the data to all "look" the same way.
>
> Its just that we have about 120 subjects analysis done and we want to know if it makes sense to reanalyze all the data.
>
> Thanks.
> - Anita
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