Table 2.
Diffusion parameters between the VETC-positive and VETC-negative groups and agreements between two radiologist.
| Parameters | Radiologist 1 | Radiologist 2 | ICC | ||||
|---|---|---|---|---|---|---|---|
| VETC-negative | VETC-positive | P value | VETC-negative | VETC-positive | P value | ||
| ADC (μm2/ms) | 1.04 ± 0.21 | 1.01 ± 0.19 | 0.489 | 1.05 ± 0.20 | 1.05 ± 0.20 | 0.836 | 0.817 |
| DKI_D (μm2/ms)* | 1.48 ± 0.43 | 1.46 ± 0.34 | 0.986 | 1.50 ± 0.39 | 1.52 ± 0.33 | 0.795 | 0.784 |
| DKI_K | 0.55 ± 0.09 | 0.62 ± 0.09 | 0.001 | 0.55 ± 0.09 | 0.60 ± 0.09 | 0.008 | 0.948 |
| SEM_DDC (μm2/ms) | 1.64 ± 0.55 | 1.48 ± 0.51 | 0.164 | 1.66 ± 0.60 | 1.55 ± 0.48 | 0.367 | 0.859 |
| SEM_α | 0.55 ± 0.14 | 0.58 ± 0.13 | 0.248 | 0.54 ± 0.14 | 0.58 ± 0.12 | 0.188 | 0.964 |
| FROC_D (μm2/ms) | 1.00 ± 0.28 | 0.97 ± 0.22 | 0.486 | 1.02 ± 0.25 | 1.00 ± 0.22 | 0.794 | 0.727 |
| FROC_β* | 0.67 ± 0.12 | 0.66 ± 0.10 | 0.411 | 0.66 ± 0.13 | 0.65 ± 0.10 | 0.550 | 0.922 |
| FROC_μ (μm) | 3.47 ± 0.54 | 3.66 ± 0.41 | 0.068 | 3.50 ± 0.57 | 3.67 ± 0.31 | 0.075 | 0.929 |
| CTRW_D (μm2/ms)* | 1.31 ± 0.34 | 1.25 ± 0.27 | 0.494 | 1.32 ± 0.29 | 1.30 ± 0.29 | 0.616 | 0.793 |
| CTRW_α | 0.87 ± 0.07 | 0.91 ± 0.05 | 0.006 | 0.88 ± 0.07 | 0.91 ± 0.04 | 0.007 | 0.904 |
| CTRW_β | 0.66 ± 0.14 | 0.64 ± 0.13 | 0.615 | 0.64 ± 0.14 | 0.63 ± 0.12 | 0.786 | 0.917 |
Excepted where indicated, data are compared by using were compared using an independent sample t-test. *Date were compared by using a Mann-Whitney U test. ADC, apparent diffusion coefficient; DKI_D, diffusivity; DKI_K, kurtosis; SEM_DDC, distributed diffusion coefficient; SEM_α, intravoxel diffusion heterogeneity index; FROC_D, diffusion coefficient; FROC_β, fractional order derivative in space; FROC_μ, spatial constant; CTRW_D, anomalous diffusion coefficient; CTRW_α, temporal diffusion heterogeneity index; CTRW_β, spatial diffusion heterogeneity index; ICC, intraclass correlation coefficient.