Try that then.

PennLINC · Nov 27, 2023 · ad979b2 · ad979b2
1 parent 1b07ac5
commit ad979b2
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Showing 2 changed files with 6 additions and 5 deletions.
diff --git a/aslprep/interfaces/resampling.py b/aslprep/interfaces/resampling.py
@@ -29,10 +29,7 @@ class ResampleSeriesInputSpec(TraitedSpec):
     in_file = File(exists=True, mandatory=True, desc="3D or 4D image file to resample")
     ref_file = File(exists=True, mandatory=True, desc="File to resample in_file to")
     transforms = InputMultiObject(
-        traits.Either(
-            File(exists=True),
-            traits.Enum("identity"),
-        ),
+        File(exists=True),
         mandatory=True,
         desc="Transform files, from in_file to ref_file (image mode)",
     )

diff --git a/aslprep/workflows/asl/fit.py b/aslprep/workflows/asl/fit.py
@@ -792,9 +792,13 @@ def init_asl_native_wf(
     ])  # fmt:skip
 
     if m0scan:
+        from pkg_resources import resource_filename as pkgrf
+
         # Resample separate M0 file to aslref
+        # No HMC
+        identity_xfm = pkgrf("aslprep", "data/itkIdentityTransform.txt")
         aslref_m0scan = pe.Node(
-            ResampleSeries(transforms=[], in_file=m0scan),
+            ResampleSeries(transforms=[identity_xfm], in_file=m0scan),
             name="aslref_m0scan",
             n_procs=omp_nthreads,
         )