Table 4. The asymmetry in DVRs for [11C]TMSX and URIs for [11C]CFT and [11C]RAC in the striata of drug-naïve patients with Parkinson's disease.

Radiopharmaceutical	More affected side	Less affected side
Putamen
[11C]TMSX	1.46±0.11	1.50±0.10*
[11C]CFT	0.98±0.30	1.29±0.29†
[11C]RAC	3.59±0.53	3.27±0.56†
Head of the caudate nucleus
[11C]TMSX	1.38±0.10	1.36±0.08
[11C]CFT	1.78±0.33	1.89±0.38
[11C]RAC	2.52±0.37	2.47±0.39

Values are mean ± SD (PD: n  =  9). Binding of [¹¹C]TMSX was evaluated as the distribution volume ratio (DVR) and binding of [¹¹C]CFT or [¹¹C]RAC was expressed as the uptake ratio index (URI).

*p<0.05,

^†p<0.005 (paired t-test).