NVIDIA AIAA error when using auto-segmentation (modle: clara_pt_liver_and_tumor_CT_segmentation)

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1

Hello everyone,

Could anyone help me with this error message when using the Nvidia Segmentation extension?

Traceback (most recent call last):
  File "/Applications/Slicer.app/Contents/Extensions-30160/NvidiaAIAssistedAnnotation/lib/Slicer-4.13/qt-scripted-modules/SegmentEditorNvidiaAIAALib/SegmentEditorEffect.py", line 412, in onClickSegmentation
    if self.updateSegmentationMask(extreme_points, result_file, modelInfo):
  File "/Applications/Slicer.app/Contents/Extensions-30160/NvidiaAIAssistedAnnotation/lib/Slicer-4.13/qt-scripted-modules/SegmentEditorNvidiaAIAALib/SegmentEditorEffect.py", line 242, in updateSegmentationMask
    labelImage = sitk.ReadImage(in_file)
  File "/Applications/Slicer.app/Contents/lib/Python/lib/python3.6/site-packages/SimpleITK-2.1.0-py3.6-macosx-10.13-x86_64.egg/SimpleITK/extra.py", line 346, in ReadImage
    return reader.Execute()
  File "/Applications/Slicer.app/Contents/lib/Python/lib/python3.6/site-packages/SimpleITK-2.1.0-py3.6-macosx-10.13-x86_64.egg/SimpleITK/SimpleITK.py", line 8015, in Execute
    return _SimpleITK.ImageFileReader_Execute(self)
RuntimeError: Exception thrown in SimpleITK ImageFileReader_Execute: /Volumes/D/P/S-0-build/ITK/Modules/IO/NIFTI/src/itkNiftiImageIO.cxx:1980:
ITK ERROR: ITK only supports orthonormal direction cosines.  No orthonormal definition found!

Thank you

2

As the error message tells, you need to have orthogonal image axes. You can use Crop volume module with resampling mode enabled to resample your volume on a grid with orthogonal axes.

3

Thanks a lot. It’s work.

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