MRI is a technical procedure used to diagnose various diseases, as it allows viewing and provides functional images of organs and all body (veins and arteries, heart, central nervous system, etc.).. To apply this technique requires two basic elements: an adequate computer equipment and a stable magnet having the dimensions of the human body, with electronic frequencies. In the process of magnetic resonance radio frequency energy stimulates the body and then transmits this information in a resonant frequency through an antenna placed for that purpose. The transmitted signals are processed and reconstructed by a computer system, obtaining images of the body located. The accuracy achieved anatomical and contrast than regular X-ray techniques and computed tomography.
Since 1950, physics had already established the principles for developing this type of study. But in the 1970s were released the first images and its application in medicine.
Magnetic resonance practically no contraindications for the patient. However, there are some people who can not perform this study, such as those with pacemakers, inner ear transplants, or aneurysm clips in the brain.