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Table 2 Image quality assessment by the two readers. Rates in the rows are by reader 1 and rates in the columns are by reader 2. Weighted kappa between readers was 0.73 (95% CI 0.66–0.80)

From: Initial experience with a SiPM-based PET/CT scanner: influence of acquisition time on image quality

 

1

2

3

4

5

Total (%)

1

2

6

2

1

0

11 (3.8%)

2

0

9

13

6

2

30 (10.3%)

3

0

3

27

16

6

52 (17.9%)

4

0

1

9

21

33

64 (22.1%)

5

0

0

1

21

111

133 (45.9%)

Total (%)

2 (0.7%)

19 (6.6%)

52 (17.9%)

65 (22.4%)

152 (52.4%)

290