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Acta Otolaryngol. 2016;136(3):241-4. doi: 10.3109/00016489.2015.1115552. Epub 2015 Dec 1.

MRI scanning in patients implanted with a round window or stapes coupled floating mass transducer of the Vibrant Soundbridge.

Author information

1
a Department of Otolaryngology , Head and Neck Surgery at Unfallkrankenhaus Berlin , Germany.

Abstract

Conclusion MRI examinations in patients with an alternatively coupled VSB can lead to unpleasant side-effects. However, the residual hearing was not impaired, whereas the hearing performance with the VSB was decreased in one patient which could be fixed by a surgical revision. Different experiences for the VSB 503 can be expected. Objective To investigate the in vivo effects of MRI scanning on the Vibrant Soundbridge system (VSB) with an alternatively coupled Floating Mass Transducer (FMT). Method Sixty-five VSB (502) implantees were included in this study. Of them, 42 questionnaires could be evaluated with the patients' statements about their medical, otological, and general condition before, during, and after an MRI scan which was indicated for different medical reasons, despite the previous implantation of an alternatively coupled Vibrant Soundbridge System. Results In four patients (9.5%), five MRI examinations were performed. These were done for different indications (e.g. knee and shoulder joint diagnostics). During the scanning, noise and subjectively perceived distortion of the implant were described. A deterioration of the hearing gain with the VSB in place was found in one patient. A decrease of the hearing threshold was not observed.

KEYWORDS:

MRI; Vibrant Soundbridge; round window

PMID:
26624271
DOI:
10.3109/00016489.2015.1115552
[Indexed for MEDLINE]

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