Table 1.
Magnetisation transfer ratio (MTR) values measured in each lumbar segment (averaged over all regions i.e. pre-, post-ganglionic and side i.e. L/R) (N = 10) and scan-rescan, intra-rater and inter-rater reproducibility results (N = 5).
| Measurement | Mean MTR (a.u.) | SD | Scan-rescan (%COV) | Intra-rater (%COV) | Inter-rater (%COV) | Scan-rescan (ICC) | Intra-rater (ICC) | Inter-rater (ICC) |
|---|---|---|---|---|---|---|---|---|
| L2 | 29.4 | 4.5 | 6.8 | 4.8 | 8.0 | 0.86 | 0.90 | 0.79 |
| L3 | 31.0 | 2.5 | 3.6 | 4.3 | 4.9 | 0.56 | 0.78 | 0.59 |
| L4 | 31.1 | 3.3 | 6.0 | 5.4 | 6.1 | 0.35 | 0.84 | 0.74 |
| L5 | 30.6 | 3.5 | 4.9 | 5.5 | 3.1 | 0.79 | 0.89 | 0.96 |
| All (L2-L5) | 30.5 | 2.4 | 3.2 | 4.4 | 5.3 | 0.76 | 0.79 | 0.65 |
MTR magnetisation transfer ratio, SD standard deviation, COV coefficient of variation, ICC Intraclass correlation coefficient, a.u arbitrary units.