STL file to fake CT scan/DICOM?

I have a STL of a segmented bone. I would like to convert the STL back to a CT scan as a DICOM to be used in another software which processes images.

I’ve imported the STL files as a segmentation and can now scroll though the slices of the STL part as if it was a CT scan.

Can I save these slices as DICOM?

Excuse me, the topic seems very interesting. How did you do that?

Yes, you can export the image to DICOM as described in the DICOM module documentation.