Ionizing radiation and radioactive substances are a natural and constant phenomenon in the environment and in many human activities. It is extremely important to know the correct application of ionizing radiation, not only for timely and accurate diagnosis and successful treatment, but also for knowing undesirable consequences that can occur with improper use of the same.

The purpose of invasive cardiology with the use of X-rays is to simplify and to improve procedures previously performed surgically; to eliminate the need for general anesthesia and to minimize time spent in hospital. In the operating room for invasive and interventional cardiology, it is important that the medical staff who work there, and are not the radiology profession, are educated on radiation protection and the use of protective equipment in the area of ionizing radiation. (1) In the presentation, we will give a review of protective equipment that is visibly improving both in protection and making it easier for the staff to use it. Personal protection is extremely important, it is legally regulated, and it must be strictly controlled.