Table 2.
2D spiral T1rho, 3D MAPSS T1rho and CPMG T2 values and standard deviations in normal and abnormal patellar articular cartilage.
| Normal Cartilage | Abnormal Cartilage | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Superficial (10%) | Middle (60%) | Deep (30%) | Global ROI | Superficial (10%) | Middle (60%) | Deep (30%) | Global ROI | ||
| 2D Spiral T1rho [ms] | Max | 105.7 ± 15.6 | 88.4 ± 11.8 | 59.2 ± 7.3 | 81.2 ± 12.4 | 109.7 ± 16.6 | 96.9 ± 12.1 | 66.4 ± 10.5 | 86.9 ± 14.0 |
| Min | 86.6 ± 11.3 | 50.7 ± 9.4 | 23.5 ± 5.2 | 47.1 ± 10.1 | 88.7 ± 14.5 | 60.1 ± 7.3 | 24.8 ± 5.4 | 53.3 ± 12.8 | |
| Ratio | 123% | 174% | 252% | 172% | 124% | 161% | 268% | 163% | |
| 3D MAPSS T1rho [ms] | Max | 114.9 ± 16.3 | 98.1 ± 13.6 | 65.1 ± 85.7 | 89.8 ± 11.7 | 134.0 ± 18.9 | 104.9 ± 13.5 | 69.3 ± 11.5 | 92.1 ± 13.7 |
| Min | 94.1 ± 12.1 | 58.3 ± 10.9 | 27.4 ± 6.1 | 53.8 ± 10.6 | 105.2 ± 17.1 | 67.7 ± 12.8 | 28.8 ± 7.4 | 60.1 ± 11.6 | |
| Ratio | 122% | 168% | 238% | 167% | 127% | 155% | 241% | 153% | |
| 2D CPMG T2 [ms] | Max | 85.3 ± 12.5 | 78.4 ± 13.0 | 55.1 ± 7.9 | 71.5 ± 10.3 | 93.7 ± 14.3 | 75.2 ± 12.6 | 53.4 ± 8.2 | 69.4 ± 11.4 |
| Min | 66.6 ± 8.7 | 28.7 ± 8.7 | 21.4 ± 4.7 | 27.9 ± 6.6 | 66.2 ± 10.1 | 38.2 ± 9.4 | 17.6 ± 7.4 | 34.1 ± 8.8 | |
| Ratio | 128% | 273% | 258% | 256% | 142% | 197% | 303% | 204% | |