Table 2.
Comparison of different DTI metrics among various zones in low-grade groups.
| Tumor zone VS NAWM | Peritumoral edema zone VS NAWM | WM adjacent to edema VS NAWM | ||||
|---|---|---|---|---|---|---|
| T-value | P-value | T-value | P-value | T-value | P-value | |
| AD | 0.573 | 0.573 | 4.817 | 0.000∗ | -2.442 | 0.024∗ |
| RD | 9.546 | 0.000∗ | 10.010 | 0.000∗ | 2.032 | 0.056 |
| Cp | -6.780 | 0.000∗ | -7.407 | 0.000∗ | -1.102 | 0.028∗ |
| Cs | 14.173 | 0.000∗ | 12.621 | 0.000∗ | 3.676 | 0.001∗ |
| Cl | -11.583 | 0.000∗ | -9.769 | 0.000∗ | -2.652 | 0.015∗ |
∗p < 0.05. AD, axial diffusivity; RD, radial diffusivity; Cp, planar tensor; Cs, spherical tensor; Cl, linear tensor; WM, white matter; NAWM, normal-appearing white matter.