Table 1. Measurement results in the three regions of interest: the frontal WM, the CST at the level of the centrum semiovale (CST-CS), and at the level of the posterior limb of the internal capsule (CST-PLIC).
Parameter | Frontal WM | CST–CS | CST–PLIC | T-score(paired t-test) | ||||
---|---|---|---|---|---|---|---|---|
mean | SD | mean | SD | mean | SD | frontal vs CST-CS | CST-CS vs PLIC | |
MD | 0.810 | 0.032 | 0.740 | 0.028 | 0.752 | 0.025 | 10.3*** | -1.81 |
FA | 0.440 | 0.061 | 0.488 | 0.057 | 0.778 | 0.035 | -3.03** | -19.2*** |
λ1 | 1.207 | 0.078 | 1.179 | 0.089 | 1.611 | 0.082 | 1.44 | -17.4*** |
λ(2+3)*0.5 | 0.611 | 0.046 | 0.523 | 0.035 | 0.318 | 0.035 | 7.03*** | 17.8*** |
MK | 0.972 | 0.074 | 1.144 | 0.075 | 1.392 | 0.132 | -13.2*** | -8.26*** |
RK | 1.227 | 0.144 | 1.601 | 0.138 | 2.600 | 0.463 | -12.0*** | -9.36*** |
AK | 0.732 | 0.063 | 0.814 | 0.091 | 0.604 | 0.056 | -3.34** | 7.33*** |
ICVF | 0.551 | 0.038 | 0.656 | 0.038 | 0.745 | 0.067 | -15.0*** | -5.73*** |
ODI | 0.230 | 0.036 | 0.215 | 0.027 | 0.104 | 0.019 | 1.53 | 15.4*** |
ISO | 0.045 | 0.025 | 0.067 | 0.020 | 0.106 | 0.035 | -4.38*** | -4.94*** |
NAA/Cr (CSI) | 2.422 | 0.188 | 2.828 | 0.270 | -5.48*** | |||
Cho/Cr (CSI) | 0.278 | 0.034 | 0.238 | 0.019 | 4.03** | |||
NAA/Cr (SV) | 2.266 | 0.365 | 2.556 | 0.420 | -3.28* | |||
Cho/Cr (SV) | 0.295 | 0.019 | 0.250 | 0.020 | 7.34*** | |||
MWF | 0.053 | 0.033 | 0.125 | 0.034 | -12.0*** | |||
MTR | 38.91 | 1.842 | 38.08 | 1.519 | 40.94 | 1.803 | 3.06** | -10.09*** |
QSM | 0.0024 | 0.0079 | 0.0023 | 0.0093 | -0.1238 | 0.0589 | 0.025 | 4.28*** |
R2* | 17.97 | 1.380 | 18.54 | 0.680 | 18.17 | 2.917 | -1.575 | 0.355 |
Units of diffusivities are given in μm2/ms. Statistically significant differences are highlighted in bold script (*p<0.05, **p<0.01, ***p<0.001).