Vestibular schwannomas (VS) are
intracranial tumors that can cause the dislocation of the facial nerve (FN).
The location of the FN is therefore a priori unknown to the surgeon and this is
the main reason why patients with VS may experience FN damage during the
surgery, leading to facial paralysis. In this work we used a multi-shell DTI
acquisition to perform probabilistic fiber tracking for the preoperative
determination of FN course in patients with VS. High-resolution anatomical scans were
used to help the fiber tracking algorithm to obtain a reliable reconstruction also
when the FN course had a complex configuration.