Fig. 4.

Inferior longitudinal fasciculus (ILF) along-tract statistics. In the controls, there were two segments identified of the ILF within the fractional anisotropy tract profile which corresponded to the trajectory of the fiber tract extending from the occipital lobe to the temporal lobe. The more posterior occipital segment demonstrated overall higher levels of fractional anisotropy compared to the more anterior temporal lobe segment. No distinct “peaks” were detected. When comparing this FA tract profiles to the preterm PVL cases, the greatest reduction in FA occurred in posterior occipital segment of the tract.