Cone beam CT (CBCT) is a form of computed tomography where X-ray images are reconstructed with a computer to form a volumetric or 3D image. Thanks to the high-resolution images it can produce, it is particularly useful in imaging small structures in the head, neck and joints.
Cone beam CT differs from “conventional” CT in the shape of the X-ray beam that it emits. Instead of “flat slices” that are reconstructed, the conical beam of CBCT covers a larger volume of information in a single beam and can reconstruct the total volume of the body part in fewer rotations.
The exam is usually shorter than conventional CT but still provides detailed information in high resolution.
Radiologists interpret these images and are able to diagnose conditions of the bone structures in the ear, nose, throat, jaw and musculoskeletal system with greater accuracy.
- The cone beam CT scanner is a box-like machine with a hole in the centre of the unit, very much resembling a doughnut.
- You will lie on a narrow examination table that slowly moves in and out of this unit.
- CT imaging uses special X-ray equipment to produce multiple images or pictures of the body and a computer is employed to join them together for a volumetric image of the area being studied.
- The computer workstation used for processing the imaging information is located behind a screen, where the radiographer operates the scanner and monitors the examination. They are in direct visual contact with you, and with the aid of a microphone and speaker, are able to communicate with you.
- Please arrive 15 minutes early to complete all the necessary paperwork.
- You can also download the patient information form here.
- Wear comfortable, loose-fitting clothing.
- In most cases, no special preparation is needed but check with our reception staff when you make your appointment.
- If there is any possibility that you might be pregnant.
- Please bring the test results of any similar procedures you may have had in the past. A comparison with previous imaging aids in providing a more accurate diagnosis.
- The examination will be performed by a trained radiographer and reported on by a radiologist.
- Any garments with metal zippers, belts or buttons, jewellery, eyeglasses, dentures and hairpins may interfere with X-ray images. You will therefore be required to wear the gown provided.
- You will be asked to lie as still as possible during the procedure in order to minimise movement artefacts on the images.
- For best results, cooperation with the radiographer is essential to the success of the procedure.
Under normal circumstances, you will be able to go home immediately after the procedure.
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Enquire here about the cost of a procedure and if funded by a medical aid, the extent of cover provided.
SCP’s services are offered at medical aid rates.