SBRT spot radiotherapy is likely to reset the clock back.

azmarkv mentioned the C11 (choline) PET CT at MAYO. That is only available at the HQ in Rochester, Minnesota. Incidentally the FDA has just approved a newer PET Scan agent (F18) a variant on PILARIFY (sp ?) It has greater agreement by radiologists, and greater positive predictive value (PPV)...while equally sensitive. Apparently it has a greater shelf life so smaller centers may be able to afford it.