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Table 3 The known one-time exposure amount of the various diagnostic tools

From: A case of chronic myeloid leukemia in a diagnostic radiographer

Procedure Average effective dose of radiation (mSv)* Equivalent number of radiographs
Chest radiography 0.02 1
Mammography 0.4 20
Abdominal radiography 0.7 30
CT brain 2.0 100
Bonn isotope scintigraphy (99mTc-MDP) 6.3 315
CT chest 7.0 350
CT abdomen 8.0 400
Barium enema 8.0 400
CT coronary angiography 16.0 800
  1. *The values were not the measured values from the patient’s workplace, but known values from references.