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Abstract #4209

Development of an MRI-safe miniature vibrometer for measuring unintended acoustic stimulation during MRI

Guy Fierens1,2,3, Joris Walraevens2, Ronald Peeters4, Nicolas Verhaert3,5, and Christ Glorieux1
1Physics and Astronomy, KU Leuven, Leuven, Belgium, 2Cochlear Technology Centre Belgium, Mechelen, Belgium, 3Neurosciences, KU Leuven, Leuven, Belgium, 4Radiology, UZ Leuven, Leuven, Belgium, 5Otorhinolaryngology, KU Leuven, Leuven, Belgium

Magnetic resonance imaging (MRI) for patients with active implantable medical devices can cause patient harm due to mutual interactions between the device and the electromagnetic fields used by the scanner. Medical device manufacturers subject their devices to a number of tests described in industry standards to assess the general safety of their device. Device specific hazards are not addressed by these standards but can nonetheless lead to patient harm. The presented work describes the design of a miniature vibrometer that can be used to quantify the risk of unintended stimulation of patients with acoustically stimulating auditory implants.

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