A new approach for corticospinal tract reconstruction based on navigated transcranial stimulation and standardized fractional anisotropy values

► Navigated transcranial magnetic stimulation maps motor function. ► Functional area serves as seed point for fiber tracking. ► Objective individualization of fractional anisotropy. ► Fiber tracking results deliver information for preoperative planning. ► Fiber tracking facilitates intraoperative stimulation.