Patient information Cone beam computed tomography (CBCT)

How does it work?

Cone beam computed tomography (CBCT – also referred to as C-Arm CT or flat panel CT) is a 3-D X-ray-based technology that is particularly gentle on the patient. It can do its work using about one third of the dose required by a standard CT examination and still produce images with four times the standard resolution. Fewer artefacts generated, for example, by prosthetics, screws, pins or plates,  appear in the images created by the method.

When do we need to use CBCT?

Due to the low level of exposure to radiation caused by CBTB as well as its the outstandingly detailed resolution, the method is preferable to CT in diagnosing diseases of the skeletal system. This observation applies to examinations of the hand, elbow, knee and foot. The diagnostic specialities of CBCT include the following: Rheumatism, gout, inflammations, injuries, broken bones, arthrosis, prosthesis planning, prosthesis adjustment.

How is the procedure carried out?

You can undergo a CBCT examination in our practice either in a sitting or a standing position, depending on the medical issue. We plan out the conduct of our examination precisely in advance with the help of a 3D laser, so that only the relevant area of the body is exposed to radiation. An X-ray tube and a particle detector then circles around the region to be examined – around the patient’s hand, for example. This process allows us to create a three-dimensional, high-resolution raw anatomical data record, through which we can reconstruct an image of the examined area from all angles, in much the same way as with CT cross-sections.