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Mastoid bones CT-Scan

A mastoid bones CT-Scan is an imaging procedure to examine mastoid cells that are in direct contact with the middle ear. Your health care professional may prescribe a CT scan of the mastoid bones to:

  • Do a pre-cochlear implant assessment
  • Diagnose dehiscence of the upper semicircular canal
  • Examine a cholesteatoma

Examination procedure

For the examination, we will ask you to:

  • Remove your jewelry and any metal objects that could affect the quality of the images.
  • Lie comfortably on a table and remain still. The table will slide into the CT scanner.
  • Hold your breath for a few seconds while we proceed with the examination. Please note that we will capture the images very quickly, to reduce the radiation dose you receive.

To help you plan, please note that the total length of your visit may vary between 30 and 60 minutes, even if the examination itself only takes between 10 and 25 minutes.

A medical prescription is required to perform this examination.
Please note that CT-Scan examinations are not covered by the Régie de l’Assurance Maladie du Québec (RAMQ). However, most group insurance plans cover the costs.

If your healthcare professional has prescribed this examination or if you have any questions, contact us at 1 833 590-2715.