Table 3.
T2 values for discs with different Pfirrmann grades
| Grade | T2 (mean ± SD, ms, C2-7) | T2 (mean ± SD, ms, C7T1 | ||
|---|---|---|---|---|
| No. | NP | No. | NP | |
| I | 6 | 62.99 ± 13.47 | 7 | 83.20 ± 17.59 |
| II | 91 | 50.75 ± 7.75@ | 26 | 58.46 ± 8.42$ |
| III | 122 | 44.83 ± 6.95@# | 20 | 46.91 ± 4.98$% |
| IV | 62 | 40.20 ± 5.62@#^ | 10 | 39.13 ± 5.13$~ |
| V | 34 | 34.93 ± 9.53@#^& | — | |
| Total | 315 | 46.19 ± 9.37 | 63 | 57.02 ± 16.01 |
Mean values (±standard deviation) of T2 relaxation times in milliseconds in different compartments of the cervical intervertebral disc for different Pfirrmann groups are shown. NP, nucleus pulposus. @ Compared with T2 values of NP of grade I for C2-7, P < 0.000; #Compared with T2 values of NP of grade II for C2-7, P < 0.000; ^Compared with T2 values of NP of grade III for C2-7, P < 0.002; &Compared with T2 values of NP of grade V for C2-7, P < 0.05; $ Compared with T2 values of NP of grade I for C7T1, P < 0.004; %Compared with T2 values of NP of grade II for C7T1, P < 0.000; ~Compared with T2 values of NP of grade III for C7T1, P < 0.05