Merge pull request #358 from eilidhmacnicol/enh/fprodents

 ENH: Allow non-T1w anatomical estimators

Author: effigies

sdcflows/utils/wrangler.py

@@ -42,6 +42,7 @@ def find_estimators(
     force_fmapless: bool = False,
     logger: Optional[logging.Logger] = None,
     bids_filters: Optional[dict] = None,
+    anat_suffix: Union[str, List[str]] = 'T1w',
 ) -> list:
     """
     Apply basic heuristics to automatically find available data for fieldmap estimation.
@@ -73,6 +74,9 @@ def find_estimators(
     bids_filters
         Optional dictionary of key/values to filter the entities on.
         This allows lower level file inclusion/exclusion.
+    anat_suffix : :obj:`str` or :obj:`list`
+        String or list of strings to filter anatomical images for fieldmap-less
+        approaches. If not provided, ``T1w`` is used.
 
     Returns
     -------
@@ -467,7 +471,7 @@ def find_estimators(
         fmapless = False
 
     # Find fieldmap-less schemes
-    anat_file = layout.get(**{**base_entities, **{'suffix': 'T1w', 'session': sessions}})
+    anat_file = layout.get(**{**base_entities, **{'suffix': anat_suffix, 'session': sessions}})
 
     if not fmapless or not anat_file:
         logger.debug("Skipping fmap-less estimation")