Table 4 Analysis of inter-reader agreement percent of concordance and kappa of agreement
CT features | N(% of concordance) | Kappa(95%CI) | Kappa interpretation |
|---|---|---|---|
Shape | 125/135 | 0.846(0.742–0.933) | Almost perfect |
Type | 131/135 | 0.950(0.797–0.978) | Almost perfect |
Texture | 127/135 | 0.860(0.749–0.948) | Almost perfect |
Bubblelike lucency | 128/135 | 0.861(0.754–0.956) | Almost perfect |
Margins | 121/135 | 0.759(0.632–0.871) | Almost perfect |
Vascular convergence | 124/135 | 0.813(0.698–0.916) | Almost perfect |
Air bronchogram | 124/135 | 0.820(0.703–0.921) | Almost perfect |
Pleural retraction | 133/135 | 0.969(0.922–1.00) | Almost perfect |
Spiculate | 130/135 | 0.923(0.847–0.984) | Almost perfect |
Calcifications | 128/135 | 0.640(0.335–0.881) | Substantial |
Enhancement degree | 89/105 | 0.634(0.447–0.783) | Substantial |
Lymphadenopathy | 130/135 | 0.881(0.766–0.976) | Almost perfect |
Cavitation | 132/135 | 0.758(0.393–1.00) | Almost perfect |
Heterogeneity | 126/135 | 0.838(0.731–0.924) | Almost perfect |
Peripheral fibrosis | 127/135 | 0.881(0.794 ~ 0.956) | Almost perfect |
Peripheral emphysema | 121/135 | 0.740(0.605 ~ 0.858) | Substantial |
Necrosis | 122/135 | 0.789(0.674–0.893) | Almost perfect |