A PET scan is a pretty definitive scan for cancer, in recent years they have started tweaking the tracers to look for specific types of lesions.
You will typically get an IV with a tiny amount of radioactive tracer. Then you will have a rest period before the scan, then you will have the scan.
The specific tracer in a cerianna PET is designed to search for estrogen related lesions. This will give them a better picture of your cancer.
I have had quite a few PET scans and this is a painless scan that provides a giant benefit in cancer.
Can you get this scan locally where you are being treated or will you need to travel?