CT Head

CT Head

 A CT scan of the head is very often the first step in identifying and evaluating any abnormalities associated with the brain, especially following trauma. CT of the head can be divided into the following categories:

  • Uncontrasted CT Brain – visualising brain matter and bone for identifying pathology
  • Pre and Post contrast CT Brain – providing more detailed assessment of the brain
  • High resolution CT of the facial structures or inner ear.
  • CT of the sinuses
  • CT Angiography of the brain vessels (see CTA)

 CT of the brain is useful for diagnosing and evaluating:

  • Bleeding and damage to the soft tissues and bone due to trauma.
  • Planning for reconstructive surgery after injury.
  • Bleeding due to a ruptured or leaking aneurysm of the arteries in the brain.
  • Stroke and suitability for acute intervention.
  • Assessing tumours and surgical planning for their removal.
  • Build up of fluid in the brain ventricles causing hydrocephalus.



With the arrival of MDCT the scan quality and reconstruction of 3D images have improved tremendously. The speed at which the images are acquired has also made it much easier to obtain diagnostic images on restless patients – especially in the context of head trauma.

Preparation for a CT Brain
No specific preparation is required. Booking an appointment is advised,  unless in an  emergency.

If you are receiving treatment for diabetes, please inform the radiology department in advance so that you can be given special instructions about what you should do before and after the CT. This is particularly important for patients taking Metformin.
It is essential that any woman who is or may be pregnant notify the radiology department in advance.


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