Fully Automated Quantification of the Striatal Uptake Ratio of [^99mTc]-TRODAT with SPECT Imaging: Evaluation of the Diagnostic Performance in Parkinson’s Disease and the Temporal Regression of Striatal Tracer Uptake

Table 2

The mean and standard deviation (SD) of the striatal-to-reference ratio (SRR) for the different cohorts.

	Mean	SD
PD group	1.47	0.19
Grou	1.55	0.17
Grou	1.48	0.19
Grou	1.43	0.16
Grou	1.35	0.17
nPD group	1.95	0.22
Healthy control	2.02	0.20
Essential tremor	1.89	0.23