MRI and medical considerations

Learn how we design our latest cochlear implants* to be compatible with MRI at 3.0 T

What you'll find on this page

  • Information about getting an MRI with a Nucleus® implant.*
  • Information about getting an MRI with a Baha® implant.
  • How Cochlear designs implants that are compatible1 with MRI scans.
A doctor holds up a scan

MRI scans can range in strength from 0.2 T to 7.0 T, with 1.5 T being the most common.²

Cochlear Nucleus Implants: designed for MRI compatibility1 at 1.5 T and 3.0 T

We designed our latest Nucleus® Profile™ Plus/CI600-series Implant so you can have a routine 1.5 T MRI or a high-definition 3.0 T MRI without removing its magnet.1

This means no additional surgery, no need to wear a bandage in an MRI machine and, most importantly, no unnecessary time without sound.

Nucleus® Profile™/CI500-series and Cl24RE/Freedom® implants are designed to be compatible for MRI at 3.0 T with a magnet removed by a medical procedure and at 1.5 T with a magnet in place.1

Prior to receiving an MRI, please consult with your clinician about proper precautions.

Alternatives to MRI

It may not be necessarily to have an MRI scan. For cochlear implant recipients, there is often other technology that can be used instead.

In a recent poll of radiology professionals, 85% agreed they have an alternative diagnostic tool for patients who cannot undergo an MRI due to having a device or implant with a magnet.3

Our commitment to supporting MRI

Cochlear was the first manufacturer to introduce cochlear implants with removable magnets in 1997. Our removable magnet means that a person implanted more than 20 years ago can still access today's MRI technology.

Committed to helping you

MRI compatibility is only one of many considerations when choosing a cochlear implant system. Combined with our reliability record and electrode technology, our implant design shows our commitment to our recipients.

MRI for Cochlear Baha systems

For the Baha Connect system, as long as the sound processor is removed, you can be scanned by MRI. There will be some slight shadow effects caused by the implant and the abutment.4

For the Baha Attract system, as there is an implanted magnet, the system is conditionally approved to 1.5 Tesla and there will be a large area of shadow.5

For any additional strength MRI or to reduce shadow area, the magnet can be temporarily removed by a medical procedure. The sound processor should be removed for all MRI scans.

Prior to receiving an MRI, please consult with your clinician about proper precautions.


Please seek advice from your health professional about treatments for hearing loss. Outcomes may vary, and your health professional will advise you about the factors which could affect your outcome. Always read the instructions for use. Not all products are available in all countries. Please contact your local Cochlear representative for product information.

For a full list of Cochlear’s trademarks, please visit our Terms of Use page.

1.5 T indication will vary in some markets.

* Includes CI24RE/Freedom, CI500-series/Profile and CI600-series/Profile Plus implants


  1. D806535 Nucleus Implants Magnetic Resonance Imaging (MRI) Guidelines, Apr 2019
    Compatibility is designated "MR Conditional" as specific procedures or considerations need to be followed according to the implant type
  2. The following implants are designed to be compatible for MRI at 1.5 T and at 3.0 T with magnet in place: Nucleus Profile Plus Series: Cl612, Cl622, Cl632. The following implants are designed to be compatible for MRI at 3.0 T with the magnet removed (should your doctor specifically recommend this procedure) and 1.5 T with magnet in place with use of the Cochlear Nucleus Implant Bandage and Splint Kit: Nucleus Profile Series: Cl512, Cl522, Cl532. Nucleus Cl24RE: C1422, Cl24REH, Cl24RE(CA), and Cl24RE(ST)
  3. Radiology Poll conducted by Penn, Schoen, Berland: Survey of 152 practicing radiologists and radiographers, USA, August 2015 (data on file).
  4. 633619-1 Cochlear Baha Connect System Radiographer's instructions, Jul 2015
  5. D823703 Cochlear Baha Attract System Radiographer's instructions for MRI, Mar 2016