How do access the source filepath(s) of a DICOM image given a `vtkMRMLScalarVolumeNode`

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Hello!
I’m making my first Slicer plugin, and my goal is to use the pydicom package to read a DICOM file, i.e. pydicom.read_file(< Path to the .dcm file, whether it was copied or linked during import >)

I am having trouble getting the filepath.

I was following the tutorial in this youtube video: https://www.youtube.com/watch?v=njoTEisxAJ4

I’m using slicer.util.getNode(<name>) to get a vtkMRMLScalarVolumeNode, but to my surprise, when I call _.GetStorageNode(), my storage node is None. It seems the storage node object has a _.GetFileName() property, but I can’t reach it.

I tried to look around for information on why my StorageNode might be None, what I can do to make it initialize properly, or if there’s another way to get the DICOM file path.

Any advice? Thank you!

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If the volume was loaded from dicom then the file path can be accessed with this code:

https://slicer.readthedocs.io/en/latest/developer_guide/script_repository.html#access-tag-of-a-volume-loaded-from-dicom-for-example-get-the-patient-position-stored-in-a-volume

https://slicer.readthedocs.io/en/latest/developer_guide/script_repository.html#get-path-and-filename-of-a-loaded-dicom-volume

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Worked like a charm!! Thanks. I hadn’t seen the script repository somehow.