Fig. 6

The Relationship of AVM Volume with Integrated Depth Difference (DDI). a DDI (mm) plotted against AVM volume (cubic cm) for each subject. The affected hemisphere is represented in blue, unaffected in black. b DDI Ratio is plotted against AVM volume (cubic cm). DDI ratio is the ratio of affected/unaffected DDI (i.e. the 2 points for each subject in a). The subject identifier is shown next to each data point. A linear regression line is shown in black to demonstrate the negative correlation (r = -0.74), and the purple line is DDI Ratio = 1 (affected = unaffected)