Screening, Nuclear Medicine Exam, Radiologicum Munich

How high is the radiation exposure?

Radioactivity is something natural and exists, for example anywhere in the ground. In addition, radiation reaches us from outer space. In Germany there are regions with high natural radioactivity (e.g. Fichtelgebirge – a mountain range in north-eastern Bavaria) and regions with lower radioactivity. Generally the danger posed by radioactivity to humans depends on both the type of radiation and on the amount of radiation exposure.
 
During a scintigraphy usually a small amount of low-level radioactive technetium 99m (Tc-99m) is injected. Tc-99m has a very short physical half-life - namely about 6 hours - during which time the radiation is reduced to half of the original value. In addition, the kidneys also rapidly excrete the radioactive substances “into the open”. This so-called biological half-life is often even shorter, for example, about 4 hours. The sum of the physical decay and biological excretion results in the known effective half-life, i.e. the time in which the radiation in the body decreases by half. It is typically 2-3 hours. For you this means that the radiation administered to you by us will have already subsided after a few hours.
 
Thus the radiation exposure of the body is relatively low. Through optimisation of the camera technology as well as improvements in the use of radioactive substances, the radiation exposure of the most common examinations (for example, the thyroid scintigraphy) is below the annual natural background radiation.
 
For the assessment of circulatory disorders of the coronary arteries, the load is less than that of the cardiac catheterisation and is comparable to the radiation exposure during a CT scan.

The examination is offered here 

Nuclear-medical diagnostics is offered at the following locations of radiologicum munich: