FLT-Positron Emission Tomography

**Semantic type:** Diagnostic Procedure

**Definition:** An imaging technique that utilizes positron emission tomography to produce a three-dimensional image of functional processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron-emitting radionuclide (tracer), which is introduced into the body on the biologically active molecule fluoro-L-thymidine (FLT). FLT when imaged will give tissue metabolic activity, in terms of cell proliferation.

**Synonyms:** - FLT-PET - Fluoro-L-Thymidine-Positron Emission Tomography