Presented is a method for assessing dopamine transporter levels in a selected area of a subjects central nervous system by SPECT imaging comprising administering an injection of a labeled dopamine transporter ligand at approximately the time the subject is positioned for SPECT imaging and initiating a SPECT acquisition for a duration of about 30 minutes commencing at about 15 minutes after administration of labeled dopamine transporter ligand and assessing, based on said SPECT acquisition, the amount of labeled dopamine transporter ligand that is bound to dopamine transporter.
