Table 2:

Comparison of DTI metrics between patients before surgery and the control group for the MC level

Groups/StatisticsMD (10−3mm2/s)AD (10−3mm2/s)RD (10−3mm2/s)FA
PatientsControlsPatientsControlsPatientsControlsPatientsControls
Group 1a0.97 ± 0.160.72 ± 0.041.40 ± 0.111.35 ± 0.060.75 ± 0.210.40 ± 0.040.41 ± 0.140.66 ± 0.04
    t/t' valuet' = −4.32t' = −1.24t' = −4.65t' = 4.84
    P valueP = .003dP = .25P = .002dP = .002d
Group 2b0.97 ± 0.170.73 ± 0.041.51 ± 0.161.32 ± 0.080.70 ± 0.210.44 ± 0.040.48 ± 0.140.61 ± 0.04
    t/t' valuet' = −6.40t' = −4.78t' = −5.59t' = 4.311
    P valueP < .001dP < .001dP < .001dP < .001d
Group 3c0.99 ± 0.200.75 ± 0.051.47 ± 0.151.26 ± 0.100.76 ± 0.260.49 ± 0.040.43 ± 0.160.55 ± 0.05
    t/t' valuet' = −5.89t = −5.42t' = −5.01t' = 3.51
    P valueP < .001dP < .001dP < .001dP = .001d

  • ↵a Group 1 of patients: MC level at C3–4 (n = 8).

  • ↵b Group 2 of patients: MC level at C4–5 (n = 22).

  • ↵c Group 3 of patients: MC level at C5–6 or C6–7 (n = 25).

  • ↵d Significant correlation.