[Freesurfer] Longitudinal processing - LAS and RAS orientation baseline vs follow-up

External Email - Use Caution Dear FreeSurfer Experts, I have some baseline and follow-up MRI scans that I would like to process through the longitudinal stream. Some of the baseline images were originally in Analyze format (LAS orientation) and were converted into nifti (keepin

Re: [Freesurfer] Longitudinal processing - LAS and RAS orientation baseline vs follow-up

Hi Elena, FreeSurfer put inputs in RAS coordinates (during the conform step at the very beginning), so it will take care of this. But only if the correct information is available from the input image header. If that header was corrupted earlier, it is impossilbe to know what coordinates the input