259349.fig.001a
(a) Dopamine synthesis
259349.fig.001b
(b) Dopamine transporter
259349.fig.001c
(c) Dopamine D1 receptor
259349.fig.001d
(d) Dopamine D2 receptor
259349.fig.001e
(e) Vesicular monoamine transporter type 2 (VMAT2)
Figure 1: Chemical structure of various radiotracers for the assessment of dopamine synthesis, reuptake sites, and receptors.