Computed Tomography | CT Berlin-Frohnau
What is computed tomography?Computed tomography (CT) is an imaging technique that uses X-rays to generate detailed cross-sectional images of the human body. An X-ray tube rotates around the patient, taking images from different angles that a computer processes into precise cross-sectional images. This procedure allows for a superimposition-free visualisation of bones, organs and tissues, thus providing valuable information for medical diagnostics. |
![]() |
How computed tomography works During the examination, the patient lies on a movable table that is pushed through the ring-shaped opening of the CT scanner, also known as the gantry. Inside this ring is the X-ray tube, which rotates around the body and emits X-rays. These rays penetrate the body and are attenuated to varying degrees depending on the density of the tissue. On the opposite side, detectors capture the attenuated rays and send the data to a computer, which uses it to create detailed cross-sectional images. There are many reasons for using computed tomography. In orthopedics, computed tomography (CT) is used in the following cases:
How a CT scan is performedDuring the examination, the patient lies flat on the CT scanner table. The table moves slowly through the opening of the device, depending on the desired examination area. During the examination, the patient should lie as relaxed and still as possible and follow any breathing instructions given by the staff exactly. The duration of the examination depends on the area to be examined and the questions to be answered. It takes between ten and 30 minutes. |
What alternative examination methods are there to CT scans?X-rays are the classic alternative in the case of bone diseases. Nuclear magnetic resonance (magnetic resonance imaging, NMR, MRT) is a useful alternative for soft tissue disorders such as muscle, cartilage, organs or the brain. Not to be forgotten in these disorders is ultrasound diagnostics (sonography). It is easy to use, inexpensive and provides a good initial overview for many issues. |