Figure 3

Box plot illustrating the distribution of Evan’s Index between groups of radiological morphology. A1 – Symmetry in the AP and LR axes, with external hydrocephalus A2 – Symmetry in the AP and LR axes without external hydrocephalus, moderate dilation A3 – Predominant severe dilation, symmetry in the AP and LR axes B1 – Predominant dilation of the occipital horns B2 – Predominant dilation of the frontal horns C – Predominant asymmetry in the LR axis AP – anterior-posterior, LR – left-to-right.