• Radioisotopes are widely used to diagnose disease and as effective treatment tools.
  • For diagnosis, the isotope is administered and then located in the body using a scanner of some sort.
  • The decay product (often gamma emission) can be located and the intensity measured.
  • The amount of isotope taken up by the body can then give information as to the extent of the medical problem.
  • There are presently over 25 different isotopes in use for diagnosis and treatment.
  • A very partial list can be seen in the Table below.
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