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add error message to alert user to frame mismatch #50

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Dec 11, 2024
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add error message to alert user to frame mismatch #50

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8 changes: 8 additions & 0 deletions petdeface/pet.py
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,14 @@ def _run_interface(self, runtime):
frames_duration = np.array(meta.outputs.out_dict["FrameDuration"])

mid_frames = frames_start + frames_duration / 2

# check to see if the json sidecar file has the correct number of frames
if len(mid_frames) != data.shape[-1]:
json_file = pet_file.replace(".gz", "").replace(".nii", ".json")
raise ValueError(
f"Number of frames in {pet_file} does not match the number of frames in the json sidecar file {json_file}"
)

wavg = np.trapz(data, x=mid_frames) / (mid_frames[-1] - mid_frames[0])

_, base, ext = split_filename(pet_file)
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