[ENH] Allow UNKNOWN and NONE ContrastBolusIngredients (#1547)

* add more contrast agents * Update src/schema/objects/metadata.yaml Co-authored-by: Chris Markiewicz <effigies@gmail.com> --------- Co-authored-by: Chris Markiewicz <effigies@gmail.com>
bids-standard · Aug 10, 2023 · bdc3d55 · bdc3d55
1 parent fa11b47
commit bdc3d55
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/schema/objects/metadata.yaml b/src/schema/objects/metadata.yaml
@@ -500,6 +500,8 @@ ContrastBolusIngredient:
     - CARBON DIOXIDE
     - BARIUM
     - XENON
+    - UNKNOWN
+    - NONE
 DCOffsetCorrection:
   name: DCOffsetCorrection
   display_name: DC Offset Correction