Table 5.
shows a summary of the average depth of oedema, grade of lesion on MRI and at arthroscopy and the type of MR sequences used (n = 10)
| Outerbridge grade on arthroscopy | Average depth of oedema (cm) | Grade (on MRI) | Sagittal sequence used for measurement |
| 4 | 1.00 | 3 | T2 Turbo spin-echo |
| 4 | 2.58 | 4 | Fat saturated Fast spin-echo |
| 4 | 2.17 | 4 | Fat saturated Fast spin-echo |
| 4 | 1.50 | 3 | Short time inversion recovery (STIR) |
| 4 | 1.48 | 3 | T2 SE |
| 3 | 0.95 | 2 | Fast spin-echo |
| 2 | 1.47 | 3 | Fat saturated Fast spin-echo |
| 1 | 1.25 | 3 | Spin-echo |
| 1 | 1.00 | 2 | T2 Turbo spin-scho |
| 1 | 1.40 | 3 | Fat saturated Fast spin-echo |