Table 1.
Exemplary MRI Protocol That Fulfills the Recommended Requirements in Terms of Sequences and Resolution for Adequate Assessment of the MOCART 2.0 Knee Score at 3 T.
| Example Parameters for a 3 T
Protocol |
||||
|---|---|---|---|---|
| Sag PDw TSE | Sag PDw TSE fs | Sag T1w TSE | Cor PDw TSE fs | |
| Coil | 8-ch knee | 8-ch knee | 8-ch knee | 8-ch knee |
| TE (ms) | 37 | 42 | 12 | 27 |
| TR (ms) ± deviation | 2000 ± 10% | 3090 ± 10% | 600 | 4250 |
| Flip angle | 90 ± 10% | 90 ± 10% | 90 | 180 |
| Fat suppression | No | Yes | No | Yes |
| FOV (mm) | 120 | 160 | 150 | 150 |
| RFOV (%) | 100 | 100 | 100 | 100 |
| Acq. matrix | 384 | 384 | 448 | 384 |
| Scan (%) | 85 | 100 | 100 | 100 |
| Slices | 19 | 25 | 25 | 25 |
| Slice thickness (mm) | 2 | 3 | 3 | 3 |
| Interslice gap (%) | 10 | 20 | 20 | 10 |
| Slice orientation | Sagittal | Sagittal | Sagittal | Coronal |
| Acquisition time (TA) | 03:20 | 04:06 | 02:48 | 03:29 |
MRI = magnetic resonance imaging; MOCART = Magnetic Resonance Observation of Cartilage Repair Tissue; Sag PDw TSE = sagittal proton density turbo spin-echo; Sag T1w TSE = sagittal T1w TSE; Cor PDw TSE = coronal proton density turbo spin-echo.