Table 3:

Common neurotransmitter systems studied in PET imaging and radioligands used for each component or pathway involved

Neurotransmitter SystemComponent/Pathway InvolvedRadioligands Used
SerotoninSynthesisα-[11C]MTrp
Transport[11C]McNeil 5652
[11C]DASB
Type 1A receptor[11C]WAY-100635
[18F]FCWAY
[18F]MPPF
Type 1B receptor[11C]P943
Type 2 receptor[18F]setoperone
[18F]altanserin
[11C]MDL 100907
[18F]FESP
DopamineSynthesis[18F]fluoro-L-DOPA
D1 receptor[11C]SCH 23,390
[11C]NNC 112
D2/3 receptor[11C]raclopride
[11C]FLB 457
Transporter[11C]RTI-32
[11C]CFT
Monoamine oxidaseMonoamine oxidase type A[11C]harmine
Non-monoaminergic mechanismsMuscarinic type 2 receptor[18F]FP-TZTP
Nicotinic receptor[18F]FA-85380
GABA type A receptor[11C]flumazenil
Phosphodiesterase type 4[11C]-(R)-rolipram
Amyloid and τ proteins[18F]DDNP
p-glycoprotein[11C]verapamil
Histamine H1 receptor[11C]doxepin