Whether there is harm from an MRT of a brain and with what frequency the repeated procedure MRI for the adult is appointed or nominated

1 What is Magnetic Resonance Tomography?

Magnetic resonance imaging is one of the newest and most effective methods for diagnosing various diseases. Invented this method in 1973, when the first tomograph was assembled. Its creators became Nobel laureates for their contribution to the development of medicine. Initially, the word "nuclear" was present in the name, but as it causes alertness, it was removed.

This diagnostic method is considered the safest for the body, since it does not use ionizing radiation, such as radiography or computed tomography. It is this radiation that can lead to the formation of free radicals, which cause the death of healthy cells of the body.

The essence of the method is as follows: the apparatus studies the tissues of the human body on the basis that all cells are saturated with hydrogen. When a tomograph works, a magnetic field is formed, which builds up hydrogen atoms in a certain way and causes them to generate a signal. It is read by a computer, which then converts the signals to the image of organs and systems. In rare cases, with such a diagnosis, it is possible to use a contrast medium.

Although nuclear magnetic resonance is at the heart of the manipulation, modern tomographs are so safe that there are practically no contraindications to the study. And you can assign this procedure as many times as necessary.

Indications for use of MRI:

• for studies of the brain and spinal cord;
• for early diagnosis of oncological conditions;
• for the detection of various disorders of the musculoskeletal system;
• for the study of the peritoneum and pelvic organs.

MRI is also prescribed again after surgery, trauma to assess how treatment is treated and, if necessary, adjust it.

Practically magnetic resonance therapy can detect any pathology. But since this procedure is not cheap, it is used only in complex and controversial cases.

What is an MRI procedure? The patient is placed in a tomograph - a narrow and long tube, inside which a strong magnetic field is formed. Thus the patient should be absolutely motionless within 15-20 minutes. After that, the result will be processed, and the person will receive a report in his hands. The diagnosis will be made by the attending physician.

2 How often it is possible to diagnose

Each doctor, when assigning this or that diagnostic procedure, compares the harm from it and the benefit that it brings. In the case of magnetic resonance imaging, the same. Although it is recognized as a practically harmless manipulation, yet the study of the influence of the magnetic field on the human body continues.

Over the years since the invention of this device, millions of people have gone through the procedure all over the world, but there were practically no side effects. Therefore, it can be confidently asserted that this diagnostic technique is the safest.

With regard to MRI of the brain, this is the most informative way to research this body. Other methods will not give as much information about its structure. And if it is a question of tumors, then this method is practically non-alternative. Therefore, one can confidently say: MRI of the brain can be done as many times as necessary. No harm to health it will not bring.

In some cases, magnetic resonance imaging of the brain is prescribed and several times in a row. For example, in cases of detection of an inoperable tumor, the dynamics of its development and the effectiveness of the applied treatment are thus monitored.

3 Contraindications to the appointment of

As already mentioned, this procedure has virtually no contraindications. But there are cases when the conduct of this study can not be prescribed:

1. The presence of a pacemaker. This contraindication is absolute. Although patients with such a device very much need such a diagnosis. But for today in the world there is one model of the pacemaker of the improved design, allowing to pass MRT without hindrance.
2. Metal implants and prostheses in the body. If you have such items, you can not go through the procedure. The same applies to metal fragments.
3. Pregnancy. Although this method is considered almost harmless, doctors still do not prescribe it to pregnant women. That's because there is not enough evidence of the safety of such research for the fetus yet. Although MRI is still preferable to X-rays or computed tomography. Claustrophobia( fear of enclosed space).With such a phobia, the patient simply can not stand those 15-20 minutes while the procedure is underway, because all this time he will be in a confined space. For such patients, a procedure is performed under general anesthesia.

This is almost all conditions in which it is not recommended to do an MRI.Also, in general, this procedure is not prescribed for children, especially young children. Such a child simply can not be immovable the time that is necessary for the tomography.

MRI of the head can be done as many times as needed. The main thing is to find a good doctor who correctly interprets the result of the examination and will prescribe the correct treatment.