The only other obstacle to the wider use of PET-CT is the difficulty and cost of producing and transporting the radiopharmaceuticals used for PET imaging, which are usually extremely short-lived (for instance, the half life of radioactive Fluorine-18 (18F) used to trace glucose metabolism (using fluorodeoxyglucose, FDG) is two hours only.
Nuclear Radiologist: Average Salary: $180,000. Nuclear radiology is a radiology field that uses radioactive material in imaging, diagnosis and treatment. PET scans, CT scans and gamma imaging are the most commonly used equipment in this field.
Salary Outlook. Radiologic technologists earned a median salary of $55,200 in 2013. The highest-paid earned $78,440, while the lowest-paid earned $37,570.