The human body is composed of a large number of atoms of various substances. The magnetic moments (spins) of these atoms align in the direction of a strong magnetic field. During the application of a "exciting" radiofrequency pulse, the spins of the atoms are disturbed, and after the pulse ends, the spins return to their "aligned position". As they return to this position, the atoms emit various signals. By measuring these signals, their appearance can be displayed on a monitor using various computational algorithms.
A radiology technologist performs the scans, which are then evaluated by a radiologist.
Before each MRI examination, the patient must sign an informed consent form.