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Erschienen in: HNO 2/2017

23.01.2017 | Leitthema

Postoperative imaging of the internal auditory canal

Visualization of active auditory implants

verfasst von: PD Dr. med. I. Todt, G. Rademacher, P. Mittmann, S. Mutze, A. Ernst

Erschienen in: HNO | Sonderheft 2/2017

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Abstract

Background

Assessment of the internal auditory canal (IAC) and cochlea is of central importance in neurotology. The artefacts and visibility of active auditory implants on magnetic resonance imaging (MRI) vary because of their specific magnetic components. Knowledge of the size of MRI artefacts and the options for handling them is important for the auditory rehabilitation of specific diseases (e. g., vestibular schwannoma).

Methods

The current article is a literature review.

Results

MRI assessment of the IAC and cochlea after surgical placement of an active auditory implant is feasible only with a percutaneous bone-anchored hearing aid (BAHA, Ponto). When specific factors (implant position and MRI sequence) are taken into consideration, these structures can be visualized even after cochlear implantation. Complications such as magnet dislocation and pain may occur.

Conclusion

The possibility of assessing the IAC and cochlea by MRI is an important aspect that needs to be taken into consideration when planning the auditory rehabilitation of patients after acoustic neuroma surgery.
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Metadaten
Titel
Postoperative imaging of the internal auditory canal
Visualization of active auditory implants
verfasst von
PD Dr. med. I. Todt
G. Rademacher
P. Mittmann
S. Mutze
A. Ernst
Publikationsdatum
23.01.2017
Verlag
Springer Medizin
Erschienen in
HNO / Ausgabe Sonderheft 2/2017
Print ISSN: 0017-6192
Elektronische ISSN: 1433-0458
DOI
https://doi.org/10.1007/s00106-016-0296-6

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