Table 1 Percentage decreases of dopamine transporter and dopamine D2 receptor availability between the first and last positron emission tomography images
Ventral striatum (%) | Pre-commissural dorsal caudate (%) | Pre-commissural dorsal putamen (%) | Post-commissural caudate (%) | Post-commissural putamen (%) | Whole striatum (%) | |
|---|---|---|---|---|---|---|
Parkinson’s disease | ||||||
Dopamine transporter | 17.4 | 18.0 | 21.2 | 31.7 | 28.1 | 21.3 |
Dopamine D2 receptor | −14.6 | 1.5 | −9.7 | −5.4 | −22.6 | −13.3 |
Multiple system atrophy | ||||||
Dopamine transporter | 44.6 | 70.5 | 34.1 | 66.8 | 43.7 | 50.7 |
Dopamine D2 receptor | 55.6 | 67.7 | 46.4 | 41.3 | 48.7 | 53.3 |