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Multi-Magnet Cochlear Implant Technology and Magnetic Resonance Imaging: The Safety Issue.

Published version
Peer-reviewed

Repository DOI


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Authors

Canzi, Pietro 
Carlotto, Elena 
Zanoletti, Elisabetta 
Borsetto, Daniele 

Abstract

Despite the spread of novel-generation cochlear-implant (CI) magnetic systems, access to magnetic resonance imaging (MRI) for CI recipients is still limited due to safety concerns. The aim of this study is to assess and record the experiences of Hires Ultra 3D (Advanced Bionics) recipients who underwent an MRI examination. A multicentric European survey about this topic was conducted focusing on safety issues, and the results were compared with the current literature. We collected a total of 65 MRI scans performed in 9 otologic referral centers for a total of 47 Hires Ultra 3D recipients, including, for the first time, 2 children and 3 teenagers. Preventive measures were represented by scanning time and sedation for children. Head wrapping was used in eight cases, and six of the eight cases received local anesthesia, even if both measures were not needed. Only three patients complained of pain (3/65 examinations, 4.6%) due to the tight head bandage, and one of the three cases required MRI scan interruption. No other adverse events were reported. We believe that these results should encourage MRI execution in accordance with manufacturer recommendations for Ultra 3D recipients.

Description

Peer reviewed: True


Publication status: Published

Keywords

Ultra 3D, cochlear implants, magnet, magnetic resonance imaging, safety

Journal Title

Audiol Res

Conference Name

Journal ISSN

2039-4330
2039-4349

Volume Title

14

Publisher

MDPI AG