fmriprep-fake

This repository is used to build a BIDS App called fmriprep-fake. This BIDS App can generate derivatives that mimic the derivatives from fMRIPrep.

The built Docker image can be found on Docker Hub: djarecka/fmriprep_fake. Some versions can be found in another Docker Hub repository: chenyingzhao/fmriprep_fake.

This BIDS App takes three positional arguments: bids_dir, output_dir and analysis_level (that has to be 'participant').

It also takes several optional named arguments:

• --participant-label: e.g. 'sub-111'
• --bids-filter-file:
  • This is used to extract sessions if available under "bold" item;
  • e.g., {"bold": {"datatype": "func", "suffix": "bold", "session": "baseline"}}
• --output-layout: choices are:
  • bids (default): latest fMRIPrep output layout, for fMRIPrep 21.0+
  • legacy: previous fMRIPrep output layout, for fMRIPrep < 21.0

More arguments can be added too, however, currently fmriprep-fake does not consider them and won't change output files based on them.

Example of usage and output

when run without sessions (without --bids-filter-file)

docker run --rm -v <local_path_for_output>:/out_tmp djarecka/fmriprep_fake:0.1.0 inp /out_tmp participant --participant-label=sub-1

Output layout:

out_tmp/ 
├── dataset_description.json
├── desc-aparcaseg_dseg.tsv
├── desc-aseg_dseg.tsv
├── logs
│   ├── CITATION.bib
│   ├── CITATION.html
│   ├── CITATION.md
│   └── CITATION.tex
├── sourcedata
│   └── freesurfer
│       ├── fsaverage
│       │   └── mri
│       │       └── brain.mgz
│       └── sub-1
│           └── mri
│               └── orig.mgz
├── sub-1
│   ├── anat
│   │   └── sub-1_desc-brain_mask.nii.gz
│   ├── figures
│   │   └── sub-1_desc-sdc_bold.svg
│   ├── fmap
│   │   └── sub-1_acq-task_run-1_fmapid-auto00000_desc-coeff_fieldmap.nii.gz
│   └── func
│       └── sub-1_task-nback_space-T1w_desc-brain_mask.nii.gz
└── sub-1.html

when run with sessions (with --bids-filter-file)

docker run --rm -v <local_path_for_output>:/out_tmp -v <local_path_to_directory_with_filterfile>:/code djarecka/fmriprep_fake:0.1.0 inp /out_tmp participant --participant-label=sub-1 --bids-filter-file=/code/<filter_file>

Output layout:

out_tmp/
├── dataset_description.json
├── desc-aparcaseg_dseg.tsv
├── desc-aseg_dseg.tsv
├── logs
│   ├── CITATION.bib
│   ├── CITATION.html
│   ├── CITATION.md
│   └── CITATION.tex
├── sourcedata
│   └── freesurfer
│       ├── fsaverage
│       │   └── mri
│       │       └── brain.mgz
│       └── sub-1
│           └── mri
│               └── orig.mgz
├── sub-1
│   ├── figures
│   │   └── sub-1_ses-baseline_desc-sdc_bold.svg
│   └── ses-baseline
│       ├── anat
│       │   └── sub-1_ses-baseline_desc-brain_mask.nii.gz
│       ├── fmap
│       │   └── sub-1_ses-baseline_acq-task_run-1_fmapid-auto00000_desc-coeff_fieldmap.nii.gz
│       └── func
│           └── sub-1_ses-baseline_task-nback_space-T1w_desc-brain_mask.nii.gz
└── sub-1.html

when generating legacy output layout (using --output-layout legacy)

With legacy output layout, we expect two folders will be generated: fmriprep and freesurfer.

Here, we use updated version 0.1.2:

docker run --rm -v <local_path_for_output>:/out_tmp -v <local_path_to_directory_with_filterfile>:/code chenyingzhao/fmriprep_fake:0.1.2 inp /out_tmp participant --participant-label=sub-01 --output-layout legacy

Output layout:

out_tmp/
├── fmriprep
│   ├── dataset_description.json
│   ├── desc-aparcaseg_dseg.tsv
│   ├── desc-aseg_dseg.tsv
│   ├── logs
│   │   ├── CITATION.bib
│   │   ├── CITATION.html
│   │   ├── CITATION.md
│   │   └── CITATION.tex
│   ├── sub-01
│   │   ├── anat
│   │   │   └── sub-01_desc-brain_mask.nii.gz
│   │   ├── figures
│   │   │   └── sub-01_desc-sdc_bold.svg
│   │   ├── fmap
│   │   │   └── sub-01_acq-task_run-1_fmapid-auto00000_desc-coeff_fieldmap.nii.gz
│   │   ├── func
│   │   │   └── sub-01_task-nback_space-T1w_desc-brain_mask.nii.gz
│   │   └── log
│   │       └── 20230713_154731
│   │           └── fmriprep.toml
│   └── sub-01.html
└── freesurfer
    ├── fsaverage
    │   └── mri
    │       └── brain.mgz
    └── sub-01
        └── mri
            └── orig.mgz

For developers

• prep_docker.sh: Build the Docker image
  • Please increment version_tag number;
  • Please change dockerhub_username to the appropriate user account.
  • Note that currently we use multi-architecture build, so that the built Docker image can be run on both Mac M1 system and Linux system. For more details, please see comments in this file.
• Dockerfile
  • The Dockerfile used for building the Docker image.
• test.sh: Used for testing out the key python script of this BIDS App, fake_script.py
  • Please change the variables under [FIX ME].
  • Example usage can be found in the beginning of this file.

Docker image version history

• 0.1.2 (available at chenyingzhao/fmriprep_fake):
  • added --output-layout argument, which accepts bids and legacy output layouts.
  • see PR #3 for more.
• 0.1.1 (⚠️ DEPRECATED; available at chenyingzhao/fmriprep_fake):
  • added another folder layer in output directory: fmriprepfake
  • changed Dockerfile base image from python:3.8 to python:3.8.16-bullseye as seems the former one is not directly available anymore/currently shares tag with the latter one.
  • Above version is DEPRECATED as it does not follow any fMRIPrep's output layout.