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Wisconsin firms hope to make radioactive isotopes for nuclear medicine (updated)
Certain cardiac stress tests and other nuclear medicine diagnostics depend on molybdenum-99, or Mo-99, a radioactive isotope that decays into the diagnostic imaging agent technetium 99m, or Tc-99m. The latter is used in more than 40 million medical imaging procedures each year, but Mo-99 is costly and difficult to make. Now, two Wisconsin firms say they've found a more efficient way to make the critical material.
