Table 2:
Regional cartilage and meniscus T2 analysis for the ten testing patient datasets using the different reconstruction methods at acceleration rate R=5 and R=8. MANTIS provided mean T2 values that agree well with the reference T2 values for the patellar, femoral, and tibial cartilage, superficial and deep half cartilage, and meniscus.
| Methods | T2 values (ms) (mean ± SD) at R=5 | T2 values (ms) (mean ± SD) at R=8 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Patellar | Femoral | Tibial | Superficial | Deep | Meniscus | Patellar | Femoral | Tibial | Superficial | Deep | Meniscus | |
| GLR | 55.0 ± 3.2 | 54.7 ± 2.8 | 48.7 ± 5.9 | 66.0 ± 3.8 | 39.6 ± 2.3 | 37.3 ± 2.8 | 57.4 ± 3.1 | 56.8 ± 2.5 | 49.6 ± 5.5 | 68.2 ± 3.5 | 40.9 ± 2.1 | 38.0 ± 3.4 |
| LLR | 52.4 ± 3.4 | 53.1 ± 2.8 | 47.1 ± 6.2 | 63.6 ± 3.9 | 38.2 ± 2.3 | 34.7 ± 3.1 | 52.7 ± 3.3 | 53.5 ± 2.8 | 47.4 ± 6.1 | 64.0 ± 3.9 | 38.4 ± 2.3 | 34.9 ± 3.1 |
| k-t SLR | 48.1 ± 3.2 | 52.2 ± 4.2 | 44.7 ± 8.3 | 55.8 ± 4.3 | 33.5 ± 2.6 | 33.6 ± 3.3 | 55.0 ± 5.5 | 54.0 ± 4.0 | 44.1 ± 8.1 | 58.7 ± 4.3 | 35.2 ± 2.6 | 35.0 ± 3.1 |
| ALOHA | 44.3 ± 3.2 | 48.9 ± 3.7 | 43.2 ± 6.8 | 54.5 ± 4.1 | 32.7 ± 2.5 | 30.9 ± 3.5 | 48.8 ± 4.1 | 49.2 ± 3.3 | 42.0 ± 7.7 | 55.8 ± 4.4 | 33.5 ± 2.7 | 31.7 ± 3.1 |
| U-Net Imaging + T2 Fitting | 42.3 ± 3.4 | 47.3 ± 3.5 | 42.4 ± 6.2 | 53.9 ± 4.1 | 31.3 ± 1.6 | 25.8 ± 4.1 | 44.9 ± 3.7 | 47.4 ± 3.4 | 41.7 ± 6.5 | 54.5 ± 4.2 | 32.7 ± 2.5 | 28.8 ± 4.0 |
| U-Net Mapping | 41.1 ± 3.7 | 45.9 ± 3.2 | 41.5 ± 6.1 | 53.5 ± 4.4 | 32.1 ± 2.7 | 28.0 ± 3.9 | 42.6 ± 4.4 | 44.5 ± 3.4 | 39.1 ± 7.4 | 52.9 ± 5.0 | 31.7 ± 3.0 | 28.4 ± 3.9 |
| MANTIS | 40.4 ± 3.7 | 45.6 ± 3.4 | 41.7 ± 5.6 | 53.2 ± 4.1 | 31.9 ± 2.4 | 28.3 ± 4.0 | 41.0 ± 3.9 | 45.5 ± 3.6 | 41.1 ± 5.8 | 53.3 ± 4.3 | 32.0 ± 2.8 | 28.7 ± 4.5 |
| Reference | 39.6 ± 3.5 | 46.0 ± 3.4 | 42.5 ± 5.5 | 53.4 ± 3.8 | 32.0 ± 2.3 | 27.5 ± 4.0 | 39.6 ± 3.5 | 46.0 ± 3.4 | 42.5 ± 5.5 | 53.4 ± 3.8 | 32.0 ± 2.3 | 27.5 ± 4.0 |