If you or your child needs an MRI, or Magnetic Resonance Imaging, you want to know that the procedure is safe. MRI continues to be a common diagnostic tool used in many therapeutic areas.1,2
Because of the magnet in a cochlear implant, there are considerations when an MRI is recommended. This is the case with all cochlear implant manufacturers.
It is important to understand the MRI approvals for your implant and when another diagnostic tool such as an X-ray or CT scan may be a better option.
MRI for Cochlear™ Nucleus® Systems
For decades, Cochlear has designed the Nucleus Implants to be safe for MRIs. Today, 80% of MRIs are at 1.5 Tesla1, however, the strength of MRI machines will continue to increase.
In addition, 30% of MRIs are performed on the head or neck1, where the magnet could cause a shadow that would make the MRI image less effective. For that reason, it is recommended that the magnet be removed for MRI scans of the head and neck regions.
The following Nucleus Profile and Freedom implants are approved for MRI for up to 3.0T with the magnet removed and 1.5T with magnet in place with use of the Cochlear Nucleus Implant Bandage and Splint Kit:
Nucleus Profile: CI512, CI522, CI532
Nucleus CI24RE: CI422, CI24REH, CI24RE(CA), and CI24RE(ST)
The information contained within the above animation is also available as a downloadable pdf.
The Nucleus MRI Kit is available in the following countries:
MRI for Cochlear™ Baha® Systems
For the Baha Connect System, as long as the sound processor is removed, you can have an MRI scan without any additional risk. There could be a resulting shadow in the image.
For the Baha Attract System, with the implanted magnet, the system is conditionally approved to 1.5 Tesla and there will be a large area of shadow. For any additional strength MRI or to reduce shadow area then the magnet can be temporarily removed in a straightforward procedure. The sound processor should be removed for all MRI scans.
Prior to receiving an MRI, please consult with your clinician about proper precautions.