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Programs & Services - Medical Imaging

CT (CAT) Scan > Exams & Procedures > CT Chest

A CT of the chest is performed to evaluate the lungs, heart, and the blood vessels of the chest. Pathologies investigated include: lung disease, tumours, blood clots, shortness of breath.

  • The scan takes about 15 to 20 minutes.
  • No preparation is required.
  • Check in at the reception desk 15 minutes prior to your scheduled appointment to allow time for registration.
  • You will be asked to change into a hospital gown and to remove jewellery.
  • You will need to lie very still on the table as the technologist performs the scan. You will be asked to hold your breath during the scan. Any breathing during the scan will blur the images and the scan may have to be repeated.
  • The Technologist can see and hear you at all times during the scan and can communicate with you via the intercom.
  • Women should inform the technologist if there is any possibility that they may be pregnant.

Will I need to have a needle?

Maybe. You may require an injection of intravenous contrast, which may be needed to evaluate blood vessels and tumours. You may feel a warm sensation throughout your body after the injection of the contrast, and you may experience a metallic taste in your mouth. These sensations are normal and disappear after a few minutes. The technologist will discuss the injection with you before the scan is completed, and will be pleased to answer any questions you may have.