CT: Computed Tomography
CT Scan Overview
A CT scanner creates its image by moving the human body through a doughnut shaped machine, which emits a series of narrow x-ray beams.
The data from these beams is converted by a computer into diagnostic cross-sectional images. Special software is used to reconstruct images in different planes and to create three-dimensional views.
A CT scan provides fast and detailed imaging of the head and the body.
CT scans are particularly useful in imaging of the:
- Abdomen and pelvis
- The lungs
- Soft tissues
- Bones
- Brain
- Heart and blood vessels
Because of the speed of the examination, it is possible to image the beating heart to demonstrate even the smallest blood vessels!
Most CT scans are painless and non-invasive.
Some examinations require special preparations and an intravenously administered contrast (dye) media to optimise the visualisation of organs, structures and vessels in the body.
Patients are screened for known allergies and existing conditions before any procedure is started.