Problems of magnetic Resonance imaging in patients with Cochlea implants: a Heidelberg case study

Introduction Studies have shown that hearing loss is often associated with loneliness and social isolation. In the field of hearing rehabilitation, CI have increasingly gained importance. However, not only rehabilitation but also prevention plays an important role in achieving best health standards. MRI is increasingly used for medical investigations concerning physiological and pathological processes in both prevention and therapy of many diseases. The purpose of this study was to illustrate potential challenges in performing MRI scans on CI implanted patients.

Material & Methods The data base of the division of otology and neurootology of the department of oto-rhino-laryngology at the university hospital of Heidelberg was scanned for patients that were implanted in our center and presented with discomfort in the area of the CI. Our collective contained 16 patients that presented with that medical condition after going through MRI scan during a 3 year period.

Results 15 of the patients were implanted with devices from the “Cochlear” company and one with a device from the “AB” company. All patients had a MRI scan previously. All 16 patients presented with discomfort in the area of the CI. Diagnostics showed dislocation of the respective magnets in 13 of the 16 patients. All patients had to be taken to the theater.

Conclusion All 16 patients that presented in a 3 year period with either discomfort at the CI area or dislocation of the magnet have had recent MRI scans. CI and MRI seems to be a potential issue that remains to be solved sufficiently. Further studies and research are necessary to ensure MRI scans without any complications even in patients with a cochlea implant.

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Publication History

Article published online:
13 May 2021