Table IV.
Optic radiation DTI parameter | Correlate | Optic radiation subregion | |||
---|---|---|---|---|---|
LGN | ML | Body | SCWM | ||
λ|| | Amplitude asymmetry | −0.110 | 0.050 | 0.450 (P = 0.009) | −0.260 |
Latency asymmetry | 0.143 | 0.063 | −0.310 | 0.012 | |
Lesion volume | −0.066 | −0.010 | −0.263 | 0.037 | |
λ⟂ | Amplitude asymmetry | −0.235 | −0.005 | 0.045 | −0.007 |
Latency asymmetry | −0.082 | 0.225 | −0.083 | 0.137 | |
Lesion volume | −0.187 | 0.261 | 0.136 | −0.027 | |
MD | Amplitude asymmetry | −0.193 | −0.027 | −0.226 | −0.124 |
Latency asymmetry | 0.012 | 0.171 | −0.223 | 0.097 | |
Lesion volume | −0.140 | 0.159 | −0.067 | 0.004 | |
FA | Amplitude asymmetry | 0.135 | −0.033 | −0.365 (P = 0.05) | −0.121 |
Latency asymmetry | 0.205 | −0.158 | −0.139 | −0.025 | |
Lesion volume | 0.197 | −0.252 | −0.360 | 0.079 | |
α | Amplitude asymmetry | 0.150 | 0.287 | 0.479 (P = 0.008) | 0.125 |
Latency asymmetry | −0.150 | −0.260 | 0.057 | 0.087 | |
Lesion volume | −0.100 | −0.075 | −0.002 | 0.041 |
Abbreviations: λ|| (axial diffusion coefficient), λ⟂ (radial diffusion coefficient), MD (mean diffusivity), FA (fractional anisotropy), α (angle of deviation of the principal eigenvector), LGN (lateral geniculate nuclei), ML (Meyer's Loop), SCWM (subcalcarine white matter).