Information about this survey

  • We are trying to find out about what people who use cochlear implants (CIs) think about the idea of having an MRI scan. For clarification, we would like to check that we’re all talking about the same devices and that there is no confusion.
  • This is a picture of a cochlear implant:

  • Magnetic resonance imaging (MRI) is a medical imaging technique used to create pictures of the inside of the body.
  • An MRI scanner has a very strong magnet that produces a very strong magnetic field and uses radio waves to generate the images of organs inside the body.
  • MRI is often preferred to other ways of taking images of the body as it does not involve any exposure to ionising radiation (such as happens with ‘CT’, ‘X-rays’, and ‘PET’ scans). Because of this, MRI scans can be performed many times on the same person. This is a picture of an MRI scanner:

  • A cochlear implant has an outside component that is typically worn behind the ear, but can be worn on the clothing in young children. This connects to a coil that you will see attached to the scalp behind the ear. In the centre of the coil is a magnet, which keeps the outside component in place. The internal component of a cochlear implant contains, among other things, a matching coil and magnet under the scalp.
  • With some models of cochlear implant, the internal components cannot go near an MRI scanner. Others can go near some MRI scanners, but not all, and the radiographer taking the images may have to adjust some settings to make it safe. Sometimes it is necessary to surgically remove the internal magnet from the CI beforehand.
  • We are not including bone-anchored hearing aids, conventional hearing aids, or any other hearing device or implanted device.
  • All responses you give will be completely anonymised and we will not store any identifiable information.
  • We will collate responses together and publish statistical analyses performed on these numbers. We may publish parts of written responses, but this will be entirely anonymised.
  • You are being asked to complete this survey because you have been identified as someone who uses a CI. While this survey is about undergoing an MRI scan, we do not have any information about whether you have needed or will need an MRI scan. We are only contacting you because we are interested your opinions as a CI user.
  • We are not trying to attribute blame on any person or group, only to capture opinions and practices/behaviours.
  • YOU WILL NOT BE REQUIRED TO PROVIDE ANY IDENTIFYING INFORMATION IN THIS QUESTIONNAIRE, NOR WILL ANY ATTEMPT BE MADE TO IDENTIFY YOU FROM THE ANSWERS YOU GIVE.

 

  • The study information sheet (version 3.0, dated 21st May 2020) is available here.