scintigraphy

Used sometimes as backscatter CT or in scintigraphy (looking at people who have been given radioactive contrast).

It is used for research, and produce Technetium-99m that is used for nuclear medicine for scintigraphy.

(Where it creates problems for content creators.) And some automated blood morphology analysis and MRI/CT/scintigraphy/X-ray analysis, but that's in research so far.

I have had a bone scintigraphy done, which means I probably have a fraction of a gram of Tc-99 with a half life of 211k years embedded in my bones, which is unlikely to be an issue.

Every major hospital in the developed world has a radiation safety department or equivalent performing regular leak and contamination testing in association with scintigraphy and brachytherapy, but this has not prevented the widespread use of radionuclides in medicine.

I see a lot of radiological investigations that measure cerebral metabolism with scintigraphy - here's an example of what that looks like with a poor outcome (I am not a radiologist by any means, and I explored this outside of being an EMT) [1].

The average Radiologist does not only interpret a single modality or the same body part day in and day out (Radiograph, CT, MR, ultrasound, nuclear scintigraphy, PET, or mammography).