Treatment Guides

CT Scan

Computer Axial Tomography (CAT) or Computed Tomography (CT) scan is an imaging technique utilizing X-rays to create detailed images of your body

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  • 30 - 45 minutes

What is a CT scan?

CT scanning is a diagnostic imaging technique using X-rays to build a 2D or 3D image of an area of interest on your body.

What are CT scans used for?

CT scans can be used for a variety of reasons, including but not limited to:

  • Diagnosing bone disorders
  • Diagnosing and monitoring cancer and its treatments
  • Detect blood clots or other impairments in blood vessels
  • Detect changes in the brain, for example after a stroke
  • Detect and monitor conditions of the heart, lungs, liver
  • Detect enlarged lymph nodes
  • Detect a herniated disc or spinal stenosis

How does a CT scan work?

A CT scanner is shaped like a large standing circle which holds the X-ray transmitter and detector. It has an opening in its centre through which a table slides. During the procedure, you will lie on the table which will then move into the scanner. The X-ray tubes will revolve around the part of your body to be imaged, the detectors will receive the signals and then transmit them to a computer which will process and visualise the final image.

Are CT scans safe?

As CT scans use X-rays there is some exposure to radiation. This is not harmful, and any risk associated are extremely small. Sometimes, a contrast material is injected before scanning to get better pictures, which may cause an allergic reaction in some patients. All in all, the benefits of the imaging far outweigh the small risks associated with it.

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