Procedure EFF Dose
(mSv)
Risk of
cancer
Simple chest x-ray 0.03 1.5 in 1,000,000
Abdominal x-ray 1.4 7 in 100,000
Pelvis x-ray 1.2 6 in 100,000
CT scan head 3 1.5 in 10,000
CT scan body 5 5 in 10,000
Angiography 5-10 2.5 - 5 in 10,000
Nuclear medicine 2-10 1 - 5 in 10,000