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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

From: Assessment of different regions of interest-based methods for [99mTc]Tc DAT-SPECT quantification using an anthropomorphic striatal phantom

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

 \(\hbox {BPI}_{\textrm{CA}}\)

3.70 ± 0.48

2.34 ± 0.32

1.09 ± 0.41

 \(\hbox {BPI}_{\textrm{PU}}\)

3.57 ± 0.52

2.27 ± 0.41

1.00 ± 0.42

 \(\hbox {BPI}_{\textrm{ST}}\)

3.31 ± 0.41

2.06 ± 0.34

0.93 ± 0.37

MRI Cor.

 \(\hbox {BPI}_{\textrm{CA}}\)

7.43 ± 0.92

4.49 ± 0.71

2.48 ± 0.83

 \(\hbox {BPI}_{\textrm{PU}}\)

7.47 ± 0.93

4.87 ± 0.81

2.36 ± 0.85

 \(\hbox {BPI}_{\textrm{ST}}\)

7.45 ± 0.91

4.90 ± 0.76

2.41 ± 0.84

CT Cor.

 \(\hbox {BPI}_{\textrm{CA}}\)

7.44 ± 0.93

4.84 ± 0.73

2.28 ± 0.86

 \(\hbox {BPI}_{\textrm{PU}}\)

7.40 ± 0.92

4.76 ± 0.83

2.23 ± 0.87

 \(\hbox {BPI}_{\textrm{ST}}\)

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