Intrareader correlation for whole body MRI (WB MRI) and conventional MRI (CON MRI) scores of the spine
| Reader 1 | Reader 2 | Reader 3 | |
|---|---|---|---|
| Pearson correlation coefficient | |||
| 23 DVU | 0.79 | 0.89 | 0.81 |
| 6 DVU | 0.84 | 0.87 | 0.81 |
| Mean sum scores | |||
| CON 23 DVU | 30.5 | 17.9 | 32.6 |
| WB 23 DVU | 25.4 | 19.7 | 26.7 |
| p Value Mann–Whitney test | 0.049 | 0.16 | 0.076 |
| CON 6 DVU | 23.6 | 15.5 | 23.9 |
| WB 6 DVU | 20.4 | 16.4 | 20.4 |
| p Value Mann–Whitney test | 0.053 | 0.16 | 0.32 |
23 DVU, 23 discovertebral units from C2/C3 to L5/S1; 6 DVU, the six discovertebral units most affected by inflammatory changes.