Preoperative Identification of Facial Nerve in Vestibular Schwannomas Surgery Using Diffusion Tensor Tractography

Overview

Journal J Korean Neurosurg Soc

Date 2014 Oct 8

PMID 25289119

Citations 5

Authors

Kyung-Sik Choi

Min-Su Kim

Hyeok-Gyu Kwon

Sung-Ho Jang

Oh-Lyong Kim

Affiliations

Soon will be listed here.

Abstract

Objective: Facial nerve palsy is a common complication of treatment for vestibular schwannoma (VS), so preserving facial nerve function is important. The preoperative visualization of the course of facial nerve in relation to VS could help prevent injury to the nerve during the surgery. In this study, we evaluate the accuracy of diffusion tensor tractography (DTT) for preoperative identification of facial nerve.

Methods: We prospectively collected data from 11 patients with VS, who underwent preoperative DTT for facial nerve. Imaging results were correlated with intraoperative findings. Postoperative DTT was performed at postoperative 3 month. Facial nerve function was clinically evaluated according to the House-Brackmann (HB) facial nerve grading system.

Results: Facial nerve courses on preoperative tractography were entirely correlated with intraoperative findings in all patients. Facial nerve was located on the anterior of the tumor surface in 5 cases, on anteroinferior in 3 cases, on anterosuperior in 2 cases, and on posteroinferior in 1 case. In postoperative facial nerve tractography, preservation of facial nerve was confirmed in all patients. No patient had severe facial paralysis at postoperative one year.

Conclusion: This study shows that DTT for preoperative identification of facial nerve in VS surgery could be a very accurate and useful radiological method and could help to improve facial nerve preservation.

Citing Articles

Posterior location of the facial nerve on vestibular schwannoma: Report of a rare case and a literature review.

Bahuleyan B, Patel V, Anto M, Hessel S, Ramesh R, Girish K Surg Neurol Int. 2024; 15:345.

PMID: 39372978 PMC: 11450832. DOI: 10.25259/SNI_586_2024.

Facial Nerve Tractography Using Diffusion MRI: A Comparison of Acquisition b -Values and Single- and Multifiber Tracking Strategies.

Epprecht L, Zekelman L, Reinshagen K, Xie G, Norton I, Kikinis R Otol Neurotol. 2024; 45(9):e647-e654.

PMID: 39234825 PMC: 11458140. DOI: 10.1097/MAO.0000000000004310.

Significance of Preoperative Nerve Reconstruction Using Diffusion Tensor Imaging Tractography for Facial Nerve Protection in Vestibular Schwannoma.

Zhang Y, Ge H, Xu M, Mei W J Korean Neurosurg Soc. 2022; 66(2):183-189.

PMID: 36239080 PMC: 10009239. DOI: 10.3340/jkns.2022.0134.

Correlation between Cranial Nerve Microstructural Characteristics and Vestibular Schwannoma Tumor Volume.

Halawani A, Tohyama S, Hung P, Behan B, Bernstein M, Kalia S AJNR Am J Neuroradiol. 2021; 42(10):1853-1858.

PMID: 34615646 PMC: 8562758. DOI: 10.3174/ajnr.A7257.

Clinical Applications for Diffusion MRI and Tractography of Cranial Nerves Within the Posterior Fossa: A Systematic Review.

Shapey J, Vos S, Vercauteren T, Bradford R, Saeed S, Bisdas S Front Neurosci. 2019; 13:23.

PMID: 30809109 PMC: 6380197. DOI: 10.3389/fnins.2019.00023.

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