MRI masks incorrectly exported

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1

Hello everyone,

I have created my own scout and now I would like to export it (.nii file) as an MRI mask to use for other data. However, I have noticed that the location of the original scout and the exported mask (visualised in MRIcron or SPM) differ (see figures below). I would like to visualize this scout on an MNI template, but for now it is shifted when I export this.

Does anyone know why this is the case?

Original scout visualised in BST:

image
image629×509 43.1 KB

Visualisation of scout in SPM (left = left, right = right):

image
image681×611 38.9 KB

2

Tested on our side, and it seems to be working fine:

  • In Brainstorm Subject using Default anatomy: ICBM152 2023b
  • On MRIcron, the template NIfTI file was mni_icbm152_t1_tal_nlin_asym_09c.nii
    (ICBM 2009c Nonlinear Asymmetric, NIFTI 57MB) downloaded from here

image
image1921×1039 230 KB

Please provide more information:

  • Was the subject using the default anatomy?
  • Which version of ICBM512 appears in the Default anatomy Subject?
  • How was the source grid created?
  • When overlapping outside of Brainstorm, which template file are you using?