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Table 4 The percentages of the routine and standard protocols and AVIs fulfilling the limits of the EARL2 of RCmax, RCmean and RCpeak for all the six sphere sizes as well as separately for individual sphere sizes. In addition,  the meanCOVs and COVMCRs of the different protocols are listed

From: Variability in PET image quality and quantification measured with a permanently filled 68Ge-phantom: a multi-center study

 

Percentage of protocols fulfilling EARL2 limits for all six spheres (%)

Percentage of individual spheres fulfilling EARL2 limits (%)

meanCOV (%)

COVMRC (%)

RCmax

 Routine protocols

0

73

9.4

8.5

 Routine AVIs

27

67

6.1

4.9

 Standard protocols

18

67

4.2

3.5

 Standard AVIs

82

96

3.6

1.3

RCmean

 Routine protocols

45

56

8.8

7.6

 Routine AVIs

9

17

7.4

6.1

 Standard protocols

91

98

3.7

2.9

 Standard AVIs

18

73

3.4

2.1

RCpeak

 Routine protocols

0

83

5.1

4.1

 Routine AVIs

9

82

5.1

3.7

 Standard protocols

0

74

3.7

2.6

 Standard AVIs

0

74

3.7

2.0