Radioisotope Dilution Technique

**Definition:** Method for assessing flow through a system by injection of a known quantity of radionuclide into the system and monitoring its concentration over time at a specific point in the system. (From Dorland, 28th ed)

**Tree numbers:** - E01.370.384.710 - E05.484.650

**Synonyms:** - Radioisotope Dilution Technic