Table 1.
Subset 1 | Subset 2 | Subset 3 | Subset 4 | Subset 5 | Total | |
---|---|---|---|---|---|---|
N = 50 | N = 50 | N = 50 | N = 50 | N = 50 | N = 250 | |
Reference standard | ||||||
No lesion | 1 (2.0%) | 3 (6.0%) | 6 (12.0%) | 3 (6.0%) | 1 (2.0%) | 14 (5.6%) |
VI-RADS 1 | 4 (8.0%) | 3 (6.0%) | 4 (8.0%) | 2 (4.0%) | 4 (8.0%) | 17 (6.8%) |
VI-RADS 2 | 25 (50.0%) | 27 (54.0%) | 20 (40.0%) | 29 (58.0%) | 25 (50.0%) | 126 (50.4%) |
VI-RADS 3 | 2 (4.0%) | 5 (10.0%) | 2 (4.0%) | 4 (8.0%) | 2 (4.0%) | 15 (6.0%) |
VI-RADS 4 | 9 (18.0%) | 4 (8.0%) | 8 (16.0%) | 4 (8.0%) | 9 (18.0%) | 34 (13.6%) |
VI-RADS 5 | 9 (18.0%) | 8 (16.0%) | 10 (20.0%) | 8 (16.0%) | 9 (18.0%) | 44 (17.6%) |
Reader 1 | ||||||
No lesion | 4 (8.0%) | 4 (8.0%) | 8 (16.0%) | 3 (6.0%) | 3 (6.0%) | 22 (8.8%) |
VI-RADS 1 | 4 (8.0%) | 3 (6.0%) | 6 (12.0%) | 2 (4.0%) | 3 (6.0%) | 18 (7.2%) |
VI-RADS 2 | 20 (40.0%) | 29 (58.0%) | 17 (34.0%) | 30 (60.0%) | 26 (52.0%) | 122 (48.8%) |
VI-RADS 3 | 2 (4.0%) | 3 (6.0%) | 3 (6.0%) | 6 (12.0%) | 2 (4.0%) | 16 (6.4%) |
VI-RADS 4 | 13 (26.0%) | 1 (2.0%) | 8 (16.0%) | 3 (6.0%) | 7 (14.0%) | 32 (12.8%) |
VI-RADS 5 | 7 (14.0%) | 10 (20.0%) | 8 (16.0%) | 6 (12.0%) | 9 (18.0%) | 40 (16.0%) |
Reader 2 | ||||||
No lesion | 1 (2.0%) | 4 (8.0%) | 8 (16.0%) | 4 (8.0%) | 1 (2.0%) | 18 (7.2%) |
VI-RADS 1 | 5 (10.0%) | 4 (8.0%) | 5 (10.0%) | 2 (4.0%) | 3 (6.0%) | 19 (7.6%) |
VI-RADS 2 | 23 (46.0%) | 28 (56.0%) | 16 (32.0%) | 28 (56.0%) | 27 (54.0%) | 122 (48.8%) |
VI-RADS 3 | 9 (18.0%) | 2 (4.0%) | 6 (12.0%) | 3 (6.0%) | 3 (6.0%) | 23 (9.2%) |
VI-RADS 4 | 4 (8.0%) | 3 (6.0%) | 5 (10.0%) | 2 (4.0%) | 9 (18.0%) | 23 (9.2%) |
VI-RADS 5 | 8 (16.0%) | 9 (18.0%) | 10 (20.0%) | 11 (22.0%) | 7 (14.0%) | 45 (18.0%) |
Reader 3 | ||||||
No lesion | 5 (10.0%) | 3 (6.0%) | 8 (16.0%) | 3 (6.0%) | 1 (2.0%) | 20 (8.0%) |
VI-RADS 1 | 1 (2.0%) | 4 (8.0%) | 4 (8.0%) | 2 (4.0%) | 3 (6.0%) | 14 (5.6%) |
VI-RADS 2 | 20 (40.0%) | 25 (50.0%) | 18 (36.0%) | 30 (60.0%) | 26 (52.0%) | 119 (47.6%) |
VI-RADS 3 | 8 (16.0%) | 6 (12.0%) | 4 (8.0%) | 3 (6.0%) | 6 (12.0%) | 27 (10.8%) |
VI-RADS 4 | 4 (8.0%) | 3 (6.0%) | 6 (12.0%) | 3 (6.0%) | 6 (12.0%) | 22 (8.8%) |
VI-RADS 5 | 12 (24.0%) | 9 (18.0%) | 10 (20.0%) | 9 (18.0%) | 8 (16.0%) | 48 (19.2%) |