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. 2022 Jul 6;13:868026. doi: 10.3389/fneur.2022.868026

Table 3.

Comparison of example DTI region of interest values within clinical cohorts at baseline and at 6 or 12-month follow-up.

DTI Regions of Interest Example ROI Cohort Time-point n FA % change p- value MD (10−4 mm2/s) % change p- value L1 (10−4 mm2/s) % change p- value L 2and 3 (10−4 mm2/s) % change p- value
Midline right-left tracts adjacent to ventricles e.g., BCC, GCC BCC mTBI 0 M 24 0.520 ± 0.065 −4.3 0.022 9.162 ± 1.07 −2.9 0.246 15.280 ± 2.21 −4.6 0.137 6.104 ± 0.70 −0.8 0.681
6 M 24 0.498 ± 0.057 8.898 ± 0.32 14.583 ± 0.87 6.055 ± 0.45
NPH Pre-op 0 M 16 0.478 ± 0.097 +2.3 0.601 9.348 ± 1.45 −0.2 0.954 14.430 ± 1.50 +0.1 0.959 6.807 ± 1.67 +5.5 0.486
NPH Post-op 6 M 16 0.490 ± 0.104 9.329 ± 1.26 14.448 ± 1.22 7.181 ± 2.30
AD 0 M 27 0.355 ± 0.053 −6.5 0.006 14.202 ± 1.58 +7.8 0.014 19.434 ± 1.38 +5.4 0.010 11.363 ± 1.83 +12.1 0.013
12 M 27 0.332 ± 0.075 15.315 ± 3.30 20.480 ± 2.65 12.733 ± 3.65
Lateral to ventricles (long or short) anterior-posterior e.g., ILF, ATR tracts, PTR, CGC ILF/PTR mTBI 0 M 24 0.423 ± 0.077 −4.1 0.133 8.953 ± 1.08 −1.4 0.604 13.329 ± 2.77 −3.4 0.438 6.765 ± 0.45 +0.5 0.743
6 M 24 0.405 ± 0.051 8.824 ± 0.32 12.880 ± 0.81 6.796 ± 0.41
NPH Pre-op 0 M 16 0.545 ± 0.051 −11.9 0.002 7.807 ± 0.69 −0.1 0.981 13.040 ± 1.38 −6.6 0.037 5.191 ± 0.55 +14.0 0.030
NPH Post-op 6 M 16 0.480 ± 0.074 7.802 ± 0.62 12.184 ± 1.20 5.919 ± 1.24
AD 0 M 27 0.355 ± 0.028 −2.9 <0.001 10.054 ± 0.86 +2.4 0.009 13.832 ± 0.97 +1.9 0.127 8.055 ± 0.98 +4.2 0.054
12 M 27 0.345 ± 0.031 10.300 ± 1.08 14.095 ± 1.10 8.400 ± 1.09
Fronto-temporal, multi-directional tractse.g., IFO, UNC IFO/ UNC mTBI 0 M 24 0.444 ± 0.056 −5.5 0.032 9.491 ± 1.09 −2.6 0.306 14.473 ± 2.41 −5.0 0.180 7.000 ± 0.56 −0.2 0.914
6 M 24 0.420 ± 0.034 9.241 ± 0.34 13.749 ± 0.53 6.988 ± 0.41
NPH Pre-op 0 M 16 0.403 ± 0.059 −6.5 0.032 7.140 ± 0.42 −0.9 0.567 10.402 ± 0.75 −3.1 0.073 5.358 ± 0.74 +9.6 0.148
NPH Post-op 6 M 16 0.377 ± 0.054 7.072 ± 0.47 10.083 ± 0.73 5.871 ± 1.10
AD 0 M 27 0.274 ± 0.038 −8.3 0.013 10.404 ± 1.33 +2.5 0.118 12.810 ± 1.40 +3.5 0.010 8.933 ± 1.39 +4.9 0.018
12 M 27 0.251 ± 0.031 10.664 ± 1.41 13.257 ± 1.39 9.367 ± 1.44
Remote functional tracts distorted by ventricles, superior-inferior e.g., PLIC, CST PLIC mTBI 0 M 24 0.618 ± 0.046 −1.6 0.234 8.644 ± 1.12 −2.8 0.314 15.563 ± 1.99 −3.1 0.266 5.183 ± 0.76 −2.4 0.424
6 M 24 0.609 ± 0.032 8.403 ± 0.24 15.087 ± 0.45 5.061 ± 0.34
NPH Pre-op 0 M 16 0.751 ± 0.034 −11.5 <0.001 5.879 ± 0.44 +1.0 0.559 12.377 ± 1.01 −8.3 <0.001 3.255 ± 2.01 +21.8 0.390
NPH Post-op 6 M 16 0.665 ± 0.077 5.937 ± 0.54 11.350 ± 0.99 3.964 ± 2.13
AD 0 M 27 0.518 ± 0.032 −0.3 0.752 7.524 ± 0.45 +0.6 0.469 12.437 ± 0.73 +0.2 0.800 5.075 ± 0.49 +0.9 0.542
12 M 27 0.517 ± 0.035 7.568 ± 0.45 12.464 ± 0.56 5.120 ± 0.49

ATR, anterior thalamic radiation; BCC, body of the corpus callosum; CGC, cingulum; CST, corticospinal tract; DTI, diffusion tensor imaging; FA, fractional anisotropy; GCC, genu of the corpus callosum; IFO, inferior fronto-occipital fasciculus; ILF, inferior longitudinal fasciculus; L1, axial diffusivity, L2 and 3, radial diffusivity; MD, mean diffusivity; PLIC, posterior limb of the internal capsule; PTR, posterior thalamic radiation; UNC, uncinate fasciculus. The bold values represent significant p values at α <0.05.