How to name localizer scans in BIDS?

[jcohenadad]

Hi there!

Does anyone know how we should name localizer scans in BIDS? I searched for localizer and scout in the BIDS documentation, but nothing came out. Another quick search on this forum led me to these posts below, but none of them address my specific question:

• Scout scans BIDS format & fmriprep usage - #4 by Kokila_Perera
• [fmriprep] fmap "intendedFor" differs from source fieldmap... and relevant issues - #4 by hjung
• Best BIDS approach when you have two anatomical scans from a single testing session
• DICOM to BIDS conversion for Hyperfine (Portable MRI) dataset

Thanks!

Julien

[tsalo]

I think most folks don’t keep the localizers in the BIDS dataset. The Heudiconv ReproIn heuristic specifically ignores anat-scout scans, for example.

If you really want to keep them, I think you could do something like anat/<entities>_acq-scout_T1w.nii.gz? You’d have to tell any preprocessing tools (e.g., fMRIPrep) to ignore acq-scout scans though.