Organ dose to the body and the brain (from refs. [6, 7, 10, 11, 15])

SubjectsWhole body dose (mSv)Brain organ dose (mSv)
Patients
Skull X-ray1.80.9
Thyroid isotope scan3.21
Cerebral angiography85
Head CT1.620
Interventional Neuroradiology20–100200–1,000
Doctors
Per procedure0.030.3
Lifetime (40 years)2002,000
Radiotherapy
Per cycle1,000–40,00010,000–400,000