Table 2.
Variability measurements of T1ρ relaxation times due to intra-subject and post-processing differences.
| ROI | Intra-subject Short-term CVRMS (95% CI) | Intra-subject Moderate-term CVRMS (95% CI) | Intra-subject Long-term CVRMS (95% CI) | Intra-observer CVRMS (95% CI) | Adjacent-slice CVRMS (95% CI) | Inter-observer CVRMS (95% CI) |
|---|---|---|---|---|---|---|
| MEAN | 4.6 (3.6, 5.7) | 6.1 (5.4, 6.9) | 6.0 (4.8, 7.1) | 3.8 (2.9, 4.7) | 4.5 (3.5, 5.5) | 5.7 (4.3, 7.0) |
| MAF | 5.2 (3.1, 7.4) | 8.6 (4.6, 12.5) | 7.2 (4.6, 9.9) | 3.7 (2.4, 5.0) | 3.9 (2.6, 5.3) | 4.7 (2.2, 7.2) |
| MCF | 3.7 (1.9, 5.5) | 6.1 (2.9, 9.3) | 6.4 (4.0, 8.8) | 3.0 (1.7, 4.2) | 4.8 (3.1, 6.6) | 10.5 (4.2, 16.8) |
| MPF | 4.5 (2.1, 7.0) | 5.7 (3.8, 7.6) | 6.0 (3.6, 8.4) | 2.2 (1.0, 3.3) | 4.4 (2.5, 6.3) | 2.7 (1.5, 4.0) |
| MAT | 8.6 (3.8, 13.4) | 5.2 (2.7, 7.7) | 6.9 (4.6, 9.1) | 6.4 (3.7, 9.0) | 4.4 (2.4, 6.4) | 4.0 (2.2, 5.7) |
| MPT | 5.3 (3.1, 7.5) | 5.1 (1.9, 8.3) | 3.2 (1.5, 4.8) | 5.2 (3.0, 7.4) | 8.6 (4.7, 12.6) | 5.0 (2.7, 7.2) |
| LAF | 4.7 (3.3, 6.1) | 6.8 (4.0, 2.7) | 5.3 (2.5, 8.1) | 2.4 (1.2, 3.7) | 5.0 (1.7, 4.6) | 5.9 (3.5, 8.4) |
| LCF | 2.2 (1.3, 3.1) | 5.7 (4.1, 9.5) | 4.8 (2.2, 7.4) | 4.8 (2.4, 7.2) | 3.0 (3.0, 7.0) | 5.6 (3.1, 8.2) |
| LPF | 2.9 (1.5, 4.4) | 7.3 (4.4, 7.3) | 3.0 (2.2, 4.0) | 2.4 (1.3, 3.6) | 4.6 (1.3, 4.7) | 8.0 (3.0, 12.9) |
| LAT | 4.8 (2.5, 7.0) | 6.5 (3.0, 10.2) | 8.2 (4.2, 12.3) | 2.7 (1.3, 4.1) | 3.2 (2.4, 6.8) | 4.9 (2.7, 7.2) |
| LPT | 4.5 (2.1, 6.9) | 4.5 (2.3, 10.1) | 8.4 (4.6, 12.2) | 5.3 (3.0, 7.6) | 2.2 (1.7, 4.7) | 5.2 (3.2, 7.2) |