Is it possible to use slicerRT delineate the target and OAR?

[cpinter (Csaba Pinter)]

One of the most advanced features of Slicer is image segmentation

I’d start with this page of the documentation
https://slicer.readthedocs.io/en/latest/user_guide/image_segmentation.html

Also there are tons of discussions on the forum about it, but I recommend checking out the new AI based automatic segmentations

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