Table 1.
The analysis evaluation results of liver nodules according to the LIRADS reporting system by observers and inter-observer reproducibility levels in LIRADS categories
| LIRADS | Ob-1 n (%) | Ob-2 n (%) | Ob-3 n (%) | Ob-4 n (%) | Ob-5 n (%) | Con n (%) | k (95% CI) |
|---|---|---|---|---|---|---|---|
| LR-1 | 30 (22.73%) | 21 (15.91%) | 40 (30.30%) | 32 (24.24%) | 37 (28.03%) | 10 (35.71%) | 0.522 (0.468-0.575) |
| LR-2 | 12 (9.09%) | 23 (17.42%) | 8 (6.06%) | 1 (0.76%) | 8 (6.06%) | 0 (0%) | 0.082 (0.028-0.135) |
| LR-3 | 17 (12.88%) | 20 (15.15%) | 8 (6.06%) | 12 (9.09%) | 14 (10.61%) | 0 (0%) | 0.298 (0.244-0.352) |
| LR-4 | 15 (11.36%) | 11 (8.33%) | 13 (9.85%) | 24 (18.18%) | 9 (6.82%) | 0 (0%) | 0.143 (0.089-0.197) |
| LR-5 | 32 (24.24%) | 34 (25.76%) | 48 (36.36%) | 48 (36.36%) | 51 (38.64%) | 12 (42.86%) | 0.442 (0.388-0.496) |
| LR-5V | 24 (18.18%) | 22 (16.67%) | 15 (11.36%) | 14 (10.61%) | 8 (6.06%) | 6 (21.43%) | 0.600 (0.546-0.654) |
| LR-M | 2 (1.52%) | 1 (0.76%) | 0 (0%) | 1 (0.76%) | 5 (3.79%) | 0 (0%) | 0.268 (0.214-0.322) |
| Total | 132 (100%) | 132 (100%) | 132 (100%) | 132 (100%) | 132 (100%) | 28 (100%) | 0.392 (0.366-0.418) |
Ob – observer, κ– Fleiss’s kappa, Con – consensus, n – number of nodules, LR – LIRADS