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OCD X-Ray Classification Reliability ROCK Study Group.

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Presentation on theme: "OCD X-Ray Classification Reliability ROCK Study Group."— Presentation transcript:

1 OCD X-Ray Classification Reliability ROCK Study Group

2 X-Ray Classification Form

3 OCD X-ray View Most Visible OCD X-Ray View (AP/Lateral/Notch) Κappa% Agreement INTERRATER0.6542% (19/45) INTRARATER0.6983% (262/315) Kappa Agreement = excellent = substantial = moderate = fair = slight

4 Skeletal Maturity Growth Plates (Open/Closing/Closed) ICC% Agreement INTERRATER0.8649% (22/45) Kappa% Agreement INTRARATER0.8486% (270/315) Kappa Agreement = excellent = substantial = moderate = fair = slight ICC Agreement = excellent = good = fair = poor

5 OCD Location OCD Location (Medial/Lateral) Κappa% Agreement INTERRATER0.9693% (42/45) INTRARATER0.9798% (310/315) OCD Location (Anterior/Posterior/Not Visible) Κappa% Agreement INTERRATER0.3713% (6/45) INTRARATER0.6377% (244/315) Kappa Agreement = excellent = substantial = moderate = fair = slight OCD Location (Anterior/Posterior) – all cases rated “not visible” excluded Κappa% Agreement INTERRATER0.4933% (6/18) INTRARATER0.7288% (215/245)

6 OCD Size INTERRATERICC AP Knee Width0.96 AP Lesion Width0.92 AP Lesion Depth0.95 Lateral Knee Width0.98 Lateral Lesion Width0.95 Lateral Lesion Depth0.93 Notch Knee Width0.96 Notch Lesion Width0.97 Notch Lesion Depth0.97 INTRARATERICC AP Knee Width0.95 AP Lesion Width0.88 AP Lesion Depth0.92 Lateral Knee Width0.95 Lateral Lesion Width0.84 Lateral Lesion Depth0.87 Notch Knee Width0.90 Notch Lesion Width0.95 Notch Lesion Depth0.89 ICC Agreement = excellent = good = fair = poor

7 Radiodensity of Parent Bone Rim Kappa Agreement = excellent = substantial = moderate = fair = slight Parent Bone Rim Radiodensity (More/Same/Less) ICC% Agreement INTERRATER0.3922% (10/45) Kappa% Agreement INTRARATER0.4773% (231/315) ICC Agreement = excellent = good = fair = poor

8 Radiodensity of Parent Bone Rim Kappa Agreement = excellent = substantial = moderate = fair = slight Parent Bone Rim Radiodensity (More/Same/Less) ICC% Agreement INTERRATER0.3922% (10/45) Kappa% Agreement INTRARATER0.4773% (231/315) ICC Agreement = excellent = good = fair = poor Parent Bone Rim Radiodensity (More/LessORSame) Κappa% Agreement INTERRATER0.3522% (10/45) INTRARATER0.4975% (235/315) Parent Bone Rim Radiodensity (Less/MoreORSame) Κappa% Agreement INTERRATER0.9796% (43/45) INTRARATER098% (309/315)

9 % agreement = 85% (85/100) kappa = 0.70 % agreement = 85% (85/100) kappa = 0.32

10 Progeny Bone Visibility Progeny Bone Visibility (Yes/No) Κappa% Agreement INTERRATER0.4536% (16/45) INTRARATER0.6785% (267/315) Kappa Agreement = excellent = substantial = moderate = fair = slight

11 Progeny Bone Fragmentation Progeny Bone Fragmentation (Yes/No) Κappa% Agreement INTERRATER0.5450% (8/16) INTRARATER0.6486% (153/177) Kappa Agreement = excellent = substantial = moderate = fair = slight

12 Progeny Bone Displacement Kappa Agreement = excellent = substantial = moderate = fair = slight Progeny Bone Displacement (None/Partial/Total) ICC% Agreement INTERRATER0.5213% (2/16) Kappa% Agreement INTRARATER0.8091% (161/177)

13 Progeny Bone Center Radiodensity Progeny Bone Center Radiodensity (More/Same/Less) ICC% Agreement INTERRATER0.5225% (4/16) Kappa INTRARATER0.5775% (133/177) Kappa Agreement = excellent = substantial = moderate = fair = slight ICC Agreement = excellent = good = fair = poor

14 Progeny Bone Center Radiodensity Progeny Bone Center Radiodensity (More/Same/Less) ICC% Agreement INTERRATER0.5225% (4/16) Kappa INTRARATER0.5775% (133/177) Kappa Agreement = excellent = substantial = moderate = fair = slight ICC Agreement = excellent = good = fair = poor Progeny Bone Center Radiodensity (More/LessORSame) Κappa% Agreement INTERRATER0.6863% (10/16) INTRARATER0.2790% (160/177) Progeny Bone Center Radiodensity (Less/MoreORSame) Κappa% Agreement INTERRATER0.6456% (9/16) INTRARATER0.6583% (147/177)

15 Progeny Bone Rim Radiodensity Progeny Bone Rim Radiodensity (More/Same/Less) ICC% Agreement INTERRATER0.110% (0/16) Kappa% Agreement INTRARATER0.3266% (116/177) Kappa Agreement = excellent = substantial = moderate = fair = slight ICC Agreement = excellent = good = fair = poor

16 Progeny Bone Rim Radiodensity Progeny Bone Rim Radiodensity (More/Same/Less) ICC% Agreement INTERRATER0.110% (0/16) Kappa% Agreement INTRARATER0.3266% (116/177) Progeny Bone Rim Radiodensity (More/LessORSame) Κappa% Agreement INTERRATER0.6150% (8/16) INTRARATER % (159/177) Progeny Bone Rim Radiodensity (Less/MoreORSame) Kappa% Agreement INTERRATER0.010% (0/16) INTRARATER % (124/177) Kappa Agreement = excellent = substantial = moderate = fair = slight ICC Agreement = excellent = good = fair = poor

17 Progeny Bone Boundary Progeny Bone Boundary (Distinct/Indistinct) Κappa% Agreement INTERRATER0.6263% (10/16) INTRARATER0.5579% (140/177) Kappa Agreement = excellent = substantial = moderate = fair = slight

18 Progeny Bone Shape Progeny Bone Shape (Convex/Linear/Concave) ICC% Agreement INTERRATER0.3338% (6/16) Kappa% Agreement INTRARATER0.5377% (137/177) Kappa Agreement = excellent = substantial = moderate = fair = slight ICC Agreement = excellent = good = fair = poor

19 Progeny Bone Shape Progeny Bone Shape (Convex/Linear/Concave) ICC% Agreement INTERRATER0.3338% (6/16) Kappa% Agreement INTRARATER0.5377% (137/177) Progeny Bone Shape (Convex/LinearORConcave) Κappa% Agreement INTERRATER0.5544% (7/16) INTRARATER0.5881% (144/177) Progeny Bone Shape (Concave/LinearORConvex) Κappa% Agreement INTERRATER0.6556% (9/16) INTRARATER0.4783% (147/177) Kappa Agreement = excellent = substantial = moderate = fair = slight ICC Agreement = excellent = good = fair = poor


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