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Table 1 Percentage decreases of dopamine transporter and dopamine D2 receptor availability between the first and last positron emission tomography images

From: Individual time course of pre- and postsynaptic PET imaging may improve differential diagnosis of Parkinson’s disease and multiple system atrophy: a case report

  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
  1. Percentage decreases were calculated by the following formula: 100 × [(uptake ratio index in the first image) − (uptake ratio index in the last image)]/(uptake ratio index in the first image)