A Madison startup called Voximetry has gotten FDA clearance for a tool that can estimate the amount of radiation absorbed by patients following treatment or diagnosis with radiopharmaceuticals.

This class of drugs uses radioactive isotopes for diagnostic or therapeutic purposes. The amount of radiation used for diagnostics is typically very low, as the drug passes through or is absorbed by the target organ and is used to detect cancers or tumors there, according to an overview from the Mayo Clinic.

But when used to treat cancer and some other diseases, a higher dose is usually used as the radioactive agent must be able to destroy the affected tissue.

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