FIG. 3.

Tracking or streamlining is the process of extracting meaningful white matter bundles emanating from a seed point or connecting 2 or more ROIs. Different ROI placement by 2 different experts (A vs B) in the same patient may reveal variable depictions of the same tract. Increasingly, automated solutions may reduce variability. Automated tract extraction performed using an annotated fiber clustering atlas (C) has been applied to 2 individual patients (D and E), showing preservation of individual variability in the AF (light blue).