Skip to main content

Table 1 The impact of a Gaussian post-smoothing filter with a kernel width of 1–7 mm on RCmean and RCmax for a TOF PET reconstruction with 4 × 4 × 4 mm3 voxels, without PSF modelling. RCs within EARL accreditation specifications are marked in italic style

From: Digital PET compliance to EARL accreditation specifications

Recon

EARL minimum

EARL maximum

No filter

Filter

1 mm

Filter

2 mm

Filter

3 mm

Filter

4 mm

Filter

5 mm

Filter

6 mm

Filter

7 mm

Sphere diameter (mm)

 

RCmean

 10

0.27

0.38

0.34

0.33

0.32

0.30

0.28

0.26

0.24

0.22

 13

0.44

0.60

0.52

0.51

0.49

0.48

0.45

0.42

0.39

0.35

 17

0.57

0.73

0.67

0.65

0.65

0.64

0.61

0.58

0.55

0.52

 22

0.63

0.78

0.73

0.72

0.72

0.71

0.69

0.67

0.64

0.62

 28

0.72

0.85

0.77

0.77

0.77

0.77

0.76

0.74

0.72

0.71

 37

0.76

0.89

0.82

0.81

0.81

0.80

0.80

0.78

0.77

0.76

 

RCmax

 10

0.31

0.49

0.52

0.51

0.49

0.46

0.42

0.38

0.34

0.31

 13

0.59

0.85

0.81

0.80

0.77

0.73

0.68

0.63

0.57

0.51

 17

0.73

1.01

0.93

0.92

0.91

0.89

0.86

0.82

0.77

0.72

 22

0.83

1.09

0.96

0.96

0.94

0.92

0.91

0.90

0.89

0.87

 28

0.91

1.13

0.98

0.98

0.96

0.96

0.94

0.93

0.92

0.91

 37

0.95

1.16

0.98

0.98

0.97

0.96

0.95

0.94

0.94

0.94