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

Title
Preoperative Identification of Facial Nerve in Vestibular Schwannomas Surgery Using Diffusion Tensor Tractography
Author(s)
김오룡최경식김민수권혁규장성호
Keywords
LARGE ACOUSTIC NEUROMAS; CONSTRUCTIVE INTERFERENCE; CEREBELLOPONTINE ANGLE; CLINICAL ARTICLE; FIBER TRACKING; CRANIAL NERVES; SPIN-ECHO; MR; PRESERVATION; VISUALIZATION
Issue Date
201407
Publisher
KOREAN NEUROSURGICAL SOC
Citation
JOURNAL OF KOREAN NEUROSURGICAL SOCIETY, v.56, no.1, pp.11 - 15
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 OTT 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 OTT 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.
URI
http://hdl.handle.net/YU.REPOSITORY/31551http://dx.doi.org/10.3340/jkns.2014.56.1.11
ISSN
2005-3711
Appears in Collections:
의과대학 > 신경외과학교실 > Articles
의과대학 > 재활의학교실 > Articles
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