[ENH] Allow .bval and .bvec files for pepolar fmaps

src/appendices/contributors.md

@@ -257,6 +257,7 @@ If you contributed to the BIDS ecosystem and your name is not listed, please add
 | Mateusz Pawlik                                       | 📖🐛🤔🚧👀                             |
 | Mathias Goncalves                                    | 💻🔧📢                                 |
 | Mathieu Boudreau                                     | 💬🤔📢                                 |
+| Matt Cieslak                                         | 📖                                     |
 | Matt Sanderson                                       | 📖💻                                   |
 | Matteo Tonietto                                      | 📖                                     |
 | Matthias Günther                                     | 📖                                     |

src/modality-specific-files/magnetic-resonance-imaging-data.md

@@ -1254,6 +1254,7 @@ EPI scans with different phase encoding directions to estimate the distortion
 map corresponding to the nonuniformities of the *B<sub>0</sub>* field.
 These `*_epi.nii[.gz]` - or `*_m0scan.nii[.gz]` for arterial spin labeling perfusion data - files can be 3D or 4D --
 in the latter case, all timepoints share the same scanning parameters.
+Some 4D scans intended for correcting DWIs may have accompanying `*_epi.bval` and `*_epi.bvec` files.
 Examples of software tools using these kinds of images are FSL TOPUP and
 AFNI `3dqwarp`.
 

src/schema/rules/files/deriv/preprocessed_data.yaml

@@ -104,6 +104,13 @@ fmap_pepolar_common:
     space: optional
     description: optional
 
+fmap_pepolar_m0scan:
+  $ref: rules.files.raw.fmap.pepolar_m0scan
+  entities:
+    $ref: rules.files.raw.fmap.pepolar.entities
+    space: optional
+    description: optional
+
 fmap_TB1DAM_common:
   $ref: rules.files.raw.fmap.TB1DAM
   entities:

src/schema/rules/files/raw/fmap.yaml

@@ -24,6 +24,26 @@ fieldmaps:
 pepolar:
   suffixes:
     - epi
+  extensions:
+    - .nii.gz
+    - .nii
+    - .json
+    - .bval
+    - .bvec
+  datatypes:
+    - fmap
+  entities:
+    subject: required
+    session: optional
+    acquisition: optional
+    ceagent: optional
+    direction: required
+    run: optional
+    part: optional
+    chunk: optional
+
+pepolar_m0scan:
+  suffixes:
     - m0scan
   extensions:
     - .nii.gz