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Abstract #3378

Optimized DTI acquisition and tractography pipeline for a reliable reconstruction of the facial nerve in patients with vestibular schwannoma

Manuela Moretto1,2, Valentina Baro3, Sabrina Brigadoi4, Marco Castellaro1,2, Mariagiulia Anglani5, Antonio Mazzoni3, Elisabetta Zanoletti3, Andrea Landi3, Luca Denaro3, Francesco Causin5, Domenico D'Avella3, and Alessandra Bertoldo1,2

1Padova Neuroscience Center, University of Padova, Padova, Italy, 2Department of Information Engineering, University of Padova, Padova, Italy, 3Department of Neurosciences, University of Padova, Padova, Italy, 4Department of Developmental Psychology and Socialisation, University of Padova, Padova, Italy, 5Neuroradiology Unit, University of Padova, Padova, Italy

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.

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