A dopamine transporter scan, commonly referred to as a DAT scan, is a specialized imaging technique used to evaluate the status of the dopamine transporter system in the brain. It is primarily used to assist in the diagnosis of neurological conditions that affect dopamine levels, such as Parkinson's disease and other movement disorders. By using a radioactive tracer that binds to dopamine transporters, the scan provides visual and quantitative data on the functioning of the dopaminergic system.