Table 4 Results of US and MR imaging for detecting knee cartilage defects of each grade
Grade | US | MRI | |
|---|---|---|---|
Radiologist 1 | Radiologist 2 | ||
0 | 92.9 (78/84) (0.317) | 90.5 (76/84) (0.083) | 94.0 (79/84) |
1 | 0.0 (0/20) (0.025) | 0.0 (0/20) (0.025) | 25.0 (5/20) |
2 | 33.3 (10/30) (0.083) | 40.0 (12/30) (0.317) | 43.3 (13/30) |
3 | 55.3 (21/38) (0.014) | 65.8 (25/38) (0.157) | 71.1 (27/38) |
4 | 73.9 (17/23) (0.083) | 82.6 (19/23) (0.317) | 87.0 (20/23) |