Table 2. 99mTc-TRODAT-1 imaging results of the study population.

99m Tc-TRODAT imaging	Idiopathic Parkinson's disease ( n  = 28)	Parkinson-plus syndrome ( n  = 10)	p -Value
Total SUR	0.58 ± 0.27	0.68 ± 0.32	0.34
Right SUR	0.28 ± 0.16	0.33 ± 0.16	0.35
Left SUR	0.30 ± 0.15	0.34 ± 0.17	0.42

Abbreviations: 99mTc-TRODAT-1, technetium-99m labeled tropane derivative; SUR, striatal uptake ratio.