Magnetic resonance imaging (MRI)

The magnetic resonance imaging (MRI) is a modern examination method, which provides detailed cross-sectional images of the human body without using X-rays.
For examination, the patient is positioned in a tube surrounded by a strong magnetic field (several times that of the Earth’s gravitational force). In doing so, the numerous hydrogen nuclei (protons) contained in the human body are aligned in the same direction and can then be specifically excited via special radio waves. The return signal is subsequently converted into cross-sectional images on various levels by an extremely powerful computer system.

The procedure allows for creating cross-sectional images of all body regions.
These include e.g. brain, spinal cord, vertebral column and internal organs but also soft parts and joints. Even blood vessels can be displayed by means of this method.

At present, the examination is not yet suitable for patients with a cardiac pacemaker.
During pregnancy and in case of metallic foreign bodies, e.g. joint prostheses, metal splinters and clips after surgery, the physician decides in the individual case if a magnetic resonance imaging is possible and reasonable.

There is no risk of harmful effects on the body at the applied magnetic field intensity. For some examinations, a contrast medium has to be injected into the arm vein. It is well-tolerated and has no side effects.

As you are surrounded by a strong magnetic field both in the examination room and in the device, metallic objects, such as e.g. keys, coins, lighters, watches, eyeglasses, jewellery, belts or magnet-sensitive objects, such as e.g. credit or cheque cards have to be taken off prior to the examination.
When displaying the abdomen, you usually have to drink an intestinal contrast medium beforehand, which is, however, well-tolerated.
Should you suffer from extreme anxiety or claustrophobia, we can give you an appropriate sedative agent prior to the examination.

During the measurement period, which is accompanied by a technically unavoidable tapping noise, you should lie calmly and relaxed, as each movement causes disturbances in the image and additionally prolongs the examination period.
Depending on the clinical problem, the imaging takes between 20 and 40 minutes.
Due to the time-consuming image processing, however, an additional period of approx. 20 minutes is required until the images are available.
It is usually possible to immediately take the images and the findings with you; however, an additional period of 15 to 45 minutes is required for the evaluation by the physician and the completion in the typing pool.

Medical reports or images of previous examinations (e.g. CT, X-ray or computer tomography) may be useful for evaluation or comparison and should be brought along, if possible.

Although the magnetic resonance imaging is an extremely meaningful examination, questions may arise in individual cases, which required further clarification using other examination methods.

Special post-treatment is not required.
In case you have received sedatives, you will not be fit to drive at least one to two hours after the examination and should thus not actively participate in road traffic.