Table 2.

Semi-quantification results to any method applied on different structures of the striatum phantom. The indexes of quantification are represented for Binding Potential Index (BPI); Specific Binding Ratio (SBR) and Total Binding Potential Index (TBPI) in the quantification of cavities simulated of the caudate nucleus, putamen and striatum

Index of Quantification Measured to Different Levels Activity Concentration in Striatum Phantom(Mean ± SD)
Method	High	Intermediary	Low
	(10:1 to 8:1)	(7:1 to 5:1)	(4:1 to 2:1)
Manual
${\text{BPI}}_{\text{CA}}$	3.70 ± 0.48	2.34 ± 0.32	1.09 ± 0.41
${\text{BPI}}_{\text{PU}}$	3.57 ± 0.52	2.27 ± 0.41	1.00 ± 0.42
${\text{BPI}}_{\text{ST}}$	3.31 ± 0.41	2.06 ± 0.34	0.93 ± 0.37
MRI Cor.
${\text{BPI}}_{\text{CA}}$	7.43 ± 0.92	4.49 ± 0.71	2.48 ± 0.83
${\text{BPI}}_{\text{PU}}$	7.47 ± 0.93	4.87 ± 0.81	2.36 ± 0.85
${\text{BPI}}_{\text{ST}}$	7.45 ± 0.91	4.90 ± 0.76	2.41 ± 0.84
CT Cor.
${\text{BPI}}_{\text{CA}}$	7.44 ± 0.93	4.84 ± 0.73	2.28 ± 0.86
${\text{BPI}}_{\text{PU}}$	7.40 ± 0.92	4.76 ± 0.83	2.23 ± 0.87
${\text{BPI}}_{\text{ST}}$	7.42 ± 0.91	4.80 ± 0.79	2.25 ± 0.86
TwoBox
SBRST	8.52 ± 1.08	5.80 ± 0.83	2.99 ± 0.97
ThreeBox
TBPIST(%)	102.29 ± 12.05	66.98 ± 9.68	31.53 ± 12.44