Table 3.
Osteolytic lesions detection inter-rater reliability | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Group 1 standard protocol | Group 2 low-dose protocol group | Whole population | ||||||||||||||||
Reader 1 | Reader 2 | Reader 3 | Agreement | Fleiss’ kappa | p | reader 1 | Reader 2 | Reader 3 | Agreement | Fleiss’ kappa | p | Reader 1 | Reader 2 | Reader 3 | Agreement | Fleiss’ kappa | p | |
Skull lesions | 10 | 10 | 10 | 100 | 1 | <0.001 | 36 | 35 | 34 | 98.9 | 0.977 | <0.001 | 46 | 45 | 44 | 99.1 | 0.981 | <0.001 |
Cervical spine lesions | 6 | 6 | 6 | 100 | 1 | <0.001 | 31 | 32 | 32 | 98.4 | 0.962 | <0.001 | 37 | 38 | 38 | 98.6 | 0.968 | <0.001 |
Thoracic spine lesions | 9 | 9 | 9 | 100 | 1 | <0.001 | 38 | 38 | 38 | 100 | 1 | <0.001 | 47 | 47 | 47 | 100 | 1 | <0.001 |
Lumbar spine lesions | 7 | 7 | 7 | 100 | 1 | <0.001 | 34 | 34 | 33 | 99.5 | 0.988 | <0.001 | 41 | 41 | 40 | 99.5 | 0.99 | <0.001 |
Humeral head | 2 | 3 | 2 | 95.8 | 0.842 | <0.001 | 10 | 11 | 10 | 99.5 | 0.966 | <0.001 | 12 | 14 | 12 | 99.1 | 0.944 | <0.001 |
Humeral diaphysis | 5 | 5 | 5 | 100 | 1 | <0.001 | 23 | 22 | 22 | 99.5 | 0.983 | <0.001 | 28 | 27 | 27 | 99.5 | 0.986 | <0.001 |
Scapular lesions | 5 | 5 | 5 | 100 | 1 | <0.001 | 25 | 26 | 26 | 99.5 | 0.985 | <0.001 | 30 | 31 | 31 | 99.5 | 0.987 | <0.001 |
Clavicular lesions | 5 | 5 | 5 | 100 | 1 | <0.001 | 22 | 20 | 20 | 98.9 | 0.964 | <0.001 | 27 | 25 | 25 | 99.1 | 0.97 | <0.001 |
Hip bone lesions | 6 | 6 | 6 | 100 | 1 | <0.001 | 40 | 41 | 41 | 97.9 | 0.958 | <0.001 | 46 | 47 | 47 | 98.1 | 0.963 | <0.001 |
Femoral head lesions | 4 | 4 | 4 | 100 | 1 | <0.001 | 13 | 15 | 11 | 96.3 | 0.807 | <0.001 | 17 | 19 | 15 | 96.7 | 0.851 | <0.001 |
Femoral diaphysis | 6 | 6 | 6 | 100 | 1 | <0.001 | 19 | 22 | 20 | 98.4 | 0.945 | <0.001 | 25 | 28 | 26 | 98.6 | 0.957 | <0.001 |
Sternum lesions | 6 | 6 | 6 | 100 | 1 | <0.001 | 24 | 22 | 22 | 97.4 | 0.916 | <0.001 | 30 | 28 | 28 | 97.6 | 0.933 | <0.001 |
Rib lesions | 7 | 7 | 7 | 100 | 1 | <0.001 | 41 | 42 | 41 | 98.9 | 0.979 | <0.001 | 48 | 49 | 48 | 99.1 | 0.982 | <0.001 |
Extraosseous lesion | 0 | 0 | 0 | 100 | – | – | 4 | 5 | 4 | 99.5 | 0.921 | <0.001 | 4 | 5 | 4 | 99.5 | 0.921 | <0.001 |