Computed tomography

Imaging of even the tiniest of structures

Computed tomography is based on X-rays. The high local resolution of the acquired volume data sets enables very good visualisation of even tiny structures, such as the ear ossicles or the thin walls of the paranasal sinuses. 

Thanks to very short examination times, it is possible to examine organs such as the lungs or heart without any annoying artefacts caused by respiration and heartbeat.

The radiation exposure of computed tomography can be minimised in our modern machines through modern calculation procedures without affecting image quality.

A computed tomography (CT) examination usually takes just a few minutes. To keep the radiation dose as low as possible, only the required body area is examined. For the examination you lie on a positioning couch which is moved through the ring of the CT machine. During the examination, our medical technical staff always keeps an eye on you from the control room and is in contact with you via a microphone.

To ensure good image quality, it is essential that you do not move during the examination. Therefore it is necessary for you to hold your breath briefly during some examinations, such as a lung examination.

During some examinations, it is necessary for us to administer X-ray contrast agent intravenously for the examination to enable evaluation of organ tissue and vessels. The contrast agent is well tolerated and allergic reactions are very rare. However since the contrast agent contains iodine, we need some information about your thyroid function before the examination. For this purpose, your TSH level should be determined beforehand. In the case of hyperthyroidism, medications must be administered if necessary to prevent iodine uptake in the thyroid or no contrast agent is administered if necessary.

The contrast agent is completely eliminated from the body in a short time with normal kidney function. If possible, your creatinine level should be determined to enable evaluation of kidney function. If this level is not available, it can be determined in our surgery before the examination.

Please inform us of any possible allergies or intolerances before your examination. You must also tell us, before your examination if you are aware you have hyperthyroidism or potential poor kidney function.

The intake of some medications for diabetes mellitus should be discontinued before the examination. We will ask you if you take such medications when you ask for an appointment.

For abdominal examinations, it is sometimes necessary for you to drink some contrast agent over a period of 10 to 45 minutes to enable contrasting of the gastrointestinal tract prior to image acquisition.

Computed tomography cannot be performed only in rare cases.

Especially in the case of young patients, It should always be considered whether it is better to perform an MRI examination instead of a CT examination due to the radiation exposure.

CT examinations should be avoided in pregnant women and only performed in urgent cases.


We will be happy to advise you.

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