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Table 2 Inter-rater consistency in the subjective assessment of the image qualities among the anatomical structure subgroups

From: Ultra-low-dose CT reconstructed with the artificial intelligence iterative reconstruction algorithm (AIIR) in 18F-FDG total-body PET/CT examination: a preliminary study

Index

Subjective scores HIR

Subjective scores AIIR

Weighted Kappa

Overall

3.81 ± 0.41

3.18 ± 0.90

0.755

Brain

3.81 ± 0.26

2.23 ± 0.33

0.554

Neck

3.43 ± 0.47

3.65 ± 0.47

0.829

Chest

4.05 ± 0.42

4.03 ± 0.44

0.743

Abdomen

3.86 ± 0.27

2.17 ± 0.34

0.744

Lower limb

3.89 ± 0.29

3.80 ± 0.37

0.677