Technetium Tc-99m DTPA

**Semantic type:** Pharmacologic Substance

**Definition:** A radiopharmaceutical core of chelating agent DTPA (diethylenetriaminepentaacetic acid) complexed with the gamma-emitting radionuclide technetium Tc 99m with radioimaging application. Tc-99m-DTPA has been utilized as a radiotracer, when conjugated to tissue specific molecules, in a wide variety of nuclear imaging studies, including brain, lung, and renal function studies.

**Synonyms:** - 99m-technetium Diethylenetriaminepentaacetic Acid - TECHNETIUM TC-99M PENTETIC ACID - Tc-99m-DTPA - Tc-DTPA - Technetium Tc-99m Pentetic Acid