Medical isotopes

Gyorgy de HevesyGyorgy de Hevesy

Medical isotopes

Following the pioneering work of the Hungarian George de Hevesy, Nobel Laureate (1943) for working out a radioactive tracing system, medical imaging has been much aided by the use of medical isotopes to determine the function of internal organs. Hevesy determined the phosphor metabolism by radioactive nuclides.

MRI scannerMRI scanner

Compounds can be labeled with radioactive isotopes (such as technetium-99m and thallium-201) or radio-opaques (such as barium and iodine compounds).

fMRI image of a human skullfMRI image of a human skull

Radio-labelled compounds can be tracked by gamma-detecting cameras to provide useful images of organs to which they are transported. In 1935, Hevesy worked on tracing the synthesis of biological molecules using radioactive isotopes, such as 32P.

Make a journey in the human brain by moving your mouse!

In 1977, magnetic resonance was successfully used to study human organs. Magnetic isotope diagnostics provides invaluable help in diagnosing a high number of organic deformations and severe illnesses.