Table 7 Performance comparisons of commercial preclinical SPECT cameras validated with GATE using \({}^{99\text {m}}\)Tc

Detection method

SiPM

CZT

PSPMT

PSPMT

PMT

Scintillation crystal^a

CsI(Na)

N/A

NaI(Tl)

CsI(Na)

NaI(Tl)

Collimator^b

SPH/MPH

SPH/MPH

SPH/MPH

PH

SPH/MPH

Radius of rotation (mm)

28

25

25

25

45

Magnification factor

\(\sim 1\times\)

\(\sim 4\times\)

\(\sim 4\times\)

\(1\times\)

\(\sim 3.5\times\)

Energy window width

30%

20%

20%

N/A

20%

Aperture size (mm)

1.0

1.0

1.0

1.2

1.5

Intrinsic spatial resolution (mm)

0.85

1.5

N/A

N/A

3.2

Intrinsic energy resolution (%)

14.7

5

12.4

19.15

8.7

System resolution (mm)

SPH: 1.87

SPH: 1.02

N/A

2.79

N/A

Sensitivity (cps/MBq)

SPH: 34

MPH: 155

SPH: 38

36–42

SPH: 42

MPH: 150

MPH: 286

MPH: 191

SPECT resolution (mm)

SPH: 1.37

MPH: 0.58

SPH: 1.25

1.7

SPH: 1.27

MPH: 1.19

MPH: 1.24

References

N/A

[14, 43, 44]

[15, 45,46,47]

[16, 48, 49]

[17, 50]