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Fix DWI fieldmap handling #1

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msz wants to merge 1 commit from fix-dwi-fmap into main
pull from: fix-dwi-fmap
merge into: q01:main
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msz commented 2026-05-11 17:25:21 +00:00
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The heuristic did not handle DICOM series named "dwi_acq-(...)b0ref" correctly - it placed them as "_sbref" into dwi/, while they should have been "_epi" in func. These have an opposite phase encoding direction to the main dwi acquisitions, and are intended for field map correction.

This change assigns the correct folder and suffix to these files, and adds dir-PA / dir-AP to the dwi and reference acquisitions. As a result, QSIPrep should pick these up as field maps and apply susceptibility distorsion correction.

The heuristic did not handle DICOM series named "dwi_acq-(...)b0ref" correctly - it placed them as "_sbref" into dwi/, while they should have been "_epi" in func. These have an opposite phase encoding direction to the main dwi acquisitions, and are intended for field map correction. This change assigns the correct folder and suffix to these files, and adds dir-PA / dir-AP to the dwi and reference acquisitions. As a result, QSIPrep should pick these up as field maps and apply susceptibility distorsion correction.
The heuristic did not handle DICOM series named "dwi_acq-(...)b0ref"
correctly - it placed them as "_sbref" into dwi/, while they should
have been "_epi" in func. These have an opposite phase encoding
direction to the main dwi acquisitions, and are intended for field map
correction.

This change assigns the correct folder and suffix to these files, and
adds dir-PA / dir-AP to the dwi and reference acquisitions. As a
result, QSIPrep should pick these up as field maps and apply
susceptibility distorsion correction.
msz changed title from WIP: Fix DWI fieldmap handling to Fix DWI fieldmap handling 2026-05-12 16:25:03 +00:00
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git switch main
git merge --no-ff fix-dwi-fmap
git switch fix-dwi-fmap
git rebase main
git switch main
git merge --ff-only fix-dwi-fmap
git switch fix-dwi-fmap
git rebase main
git switch main
git merge --no-ff fix-dwi-fmap
git switch main
git merge --squash fix-dwi-fmap
git switch main
git merge --ff-only fix-dwi-fmap
git switch main
git merge fix-dwi-fmap
git push origin main
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