Magnetic Resonancy Imaging Safety in Active Osseointegrated (Osia®) and Cochlear Implants: New Technology Creating Confusion

Author:

Abdalla Ibrahim1ORCID,Choi Janet S.2ORCID,Struyk Griffin1,Adams Meredith E.2ORCID,Huang Tina C.2

Affiliation:

1. University of Minnesota School of Medicine Minneapolis Minnesota U.S.A.

2. Department of Otolaryngology‐Head and Neck Surgery University of Minnesota Minneapolis Minnesota U.S.A.

Abstract

ObjectiveThere is increased confusion regarding MRI‐compatible CIs and BAHAs. This report describes two cases when patients underwent MRIs with non‐MRI compatible devices.ResultsOne patient with bilateral Cochlear Osias experienced dislocation of both internal magnets after 1.5 Tesla MRI. Both magnets were outside the silastic sheath, with the left magnet flipped. A second patient with a legacy CI experienced similar internal magnet dislocation and inversion after 3 Tesla MRI.ConclusionsThis study describes internal magnet dislocation/inversion with the Cochlear Osia and a legacy CI after MRI. Our findings suggest the need for improved patient education and simplified radiology guidelines. Laryngoscope, 134:393–396, 2024

Publisher

Wiley

Subject

Otorhinolaryngology

Reference5 articles.

1. A review of the safety of MRI in cochlear implant patients with retained magnets

2. Reversing the polarity of a cochlear implant magnet after magnetic resonance imaging

3. The reversed internal magnet of cochlear implant after magnetic resonance imaging

4. U.S. Food and Drug Administration.Cochlear implants and MRI safety. February 9 2020. Accessed December 8 2023.https://www.fda.gov/medical-devices/cochlear-implants/cochlear-implants-and-mri-safet.

5. MRI Information for Commonly Used Otologic Implants

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