Computer Tomography (CT)

CT or ‘CAT’ scans are a form of X-ray that creates a 3D picture for diagnosis.

Computer tomography (CT) or computed axial tomography (CAT) uses X-rays to produce cross-sectional images of the body. The CT scanner has a large circular opening for the patient to lie on a motorized table. The X-ray source and a detector then rotate around the patient producing a narrow ‘fan-shaped’ beam of X-rays that passes through a section of the patient’s body to create a snapshot.

These snapshots are then collated into one, or multiple images of the internal organs and issues.

CT scans provide greater clarity than conventional X-rays with more detailed images of the internal organs, bones, soft tissue and blood vessels within the body.

The benefits of using CT scans far exceed the risks which, like with X-rays, include the risk of cancer, harm to an unborn child or reaction to a contrast agent or dye that may be used. In many cases, the use of a CT scan prevents the need for exploratory surgery.

It is crucial that when scanning children, the radiation dose has been lowered than that used for adults to prevent an unreasonable dose of radiation for the necessary imaging to be obtained. In many hospitals you’ll find a pediatric CT scanner for that reason.