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ENH: Flexibilize "sophisticated" pepolar to allow monomodal execution #3393

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merged 3 commits into from
Nov 3, 2024
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ENH: Flexibilize "sophisticated" pepolar to allow monomodal execution #3393

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fd66f7c
enh: flexibilize "sophisticated" pepolar to allow monomodal execution
oesteban Nov 3, 2024
82e9f8b
enh: comment code for maintainability
oesteban Nov 3, 2024
729b5b9
STY: ruff [ignore-rev]
effigies Nov 3, 2024
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14 changes: 13 additions & 1 deletion fmriprep/workflows/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -580,7 +580,19 @@ def init_single_subject_wf(subject_id: str):
suffices = [s.suffix for s in estimator.sources]

if estimator.method == fm.EstimatorType.PEPOLAR:
if len(suffices) == 2 and all(suf in ('epi', 'bold', 'sbref') for suf in suffices):
# "Sophisticated" PEPOLAR schemes should be run "manually" with SDCFlows
# The following two cases are not considered sophisticated:
# 1. All PEPOLAR entities are the same modality
# (typically, more than two EPI PE directions), or
# 2. Two modalities are involved, with at most two images to pass
# into FSL TOPUP.
if (
len(set(suffices)) == 1
or (
len(suffices) == 2
and all(suf in ('epi', 'bold', 'sbref') for suf in suffices)
)
):
wf_inputs = getattr(fmap_wf.inputs, f'in_{estimator.bids_id}')
wf_inputs.in_data = [str(s.path) for s in estimator.sources]
wf_inputs.metadata = [s.metadata for s in estimator.sources]
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