Streaks of missing data in fMRIPrep preprocessed output

Summary of what happened:

I successfully ran fmriprep on a dataset, but I noticed some streaks of missing datapoints (see attached screenshot) in certain volumes on the standard space nifti image (*_space-MNI152NLin6Asym_res-2_desc-preproc_bold.nii.gz) and wanted to see if anyone had any thoughts on where the issue may be? I’ve looked at the unprocessed bold for the same volume and there aren’t any signal missing. Any feedback and ideas would be greatly appreciated!

Command used (and if a helper script was used, a link to the helper script or the command generated):

docker run --rm -it \
    --platform linux/amd64 \
    -v "$1:/data:ro" \
    -v "$2:/out" \
    -v "$3:/workdir" \
    -v "$4:/opt/freesurfer/license.txt:ro" \
    -v "/Users/chichichang/Desktop/PhD/DARPA/dicom_data/freesurfer:/fsdir" \
    -e KMP_AFFINITY=disabled \
    -e OMP_NUM_THREADS=4 \
    --memory="50g" \
    nipreps/fmriprep:latest \
    /data /out participant \
    --participant-label $5 \
    --fs-license-file /opt/freesurfer/license.txt \
    --fs-subjects-dir /fsdir \
    --output-spaces MNI152NLin6Asym:res-2 \
    --skip-bids-validation \
    --work-dir /workdir \
    --stop-on-first-crash

Version:

25.1.3

Environment (Docker, Singularity / Apptainer, custom installation):

Docker

BIDS validator output

PASTE VALIDATOR OUTPUT HERE

N/A

Relevant log outputs

PASTE LOG OUTPUT HERE

N/A

Screenshots / relevant information:

This volume has a lot of streaks (volume 12)

Volume 12 unprocessed bold

This volume has only one small streak on the bottom right (volume 28)


Does fmriPrep drop any volumes from the beginning of the run? It could be that volume 12 of the raw, unprocessed BOLD does not correspond to volume 12 of the output… I guess you can check how many volumes the output file has and compare it to the number of volumes of the input…