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DOI: 10.1055/s-0039-1686434
MRI follow-up after intralabyrinthine and vestibular schwannoma resection and cochlear implantation
Die Studie wurde unterstützt von MED-EL, Innsbruck, Österreich.
Introduction:
MRI observation is part of the regular follow-up after vestibular schwannoma (VS) or intralabyrinthine schwannoma (ILS) resection. Since cochlear implantation (CI) after resection is a part of the audiological rehabilitation process, the MRI behavior of CI systems needs to be considered. In light of recent developments in MRI artifact positioning and pain prevention, this study evaluates reproducible MRI observations after tumor resection and CI surgery as a part of follow-up.
Methods:
In a retrospective study, we evaluated 7 patients with a T1 KM, T2 sequence MRI observation and CBCT after ILS/VS resection and CI. In all but one case, a CI with a diametrically bipolar magnet and a receiver positioned 8 – 9 cm behind the external auditory canal was performed.
Results:
In all but one case, MRI observation allowed for a pain-free visual assessment of the intralabyrinthine and the internal auditory canal (IAC) regions. In one case a pain full dislodgement of the receiver magnet occurred.
Conclusion:
MRI follow- up after ILS and VS resection and CI is reproducibly possible. Implant choice and positioning should be considered before implantation to allow for a pain-free visual assessment afterwards.
Publication History
Publication Date:
23 April 2019 (online)
© 2019. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).
Georg Thieme Verlag KG
Stuttgart · New York