Magnetic Resonance Imaging is a noninvasive diagnostic procedure employing an MR scanner to obtain detailed sectional images of the internal structure of the body. A diagnostic device employing nuclear magnetic resonance to display computer-generated sectional images of the body, consisting of a large body encircling magnet that generates a strong uniform magnetic field which interacts with radio waves to excite the nuclei of hydrogen atoms, or other specific atoms, and a detection system that picks up the signals from the body and  transforms them into a visual image.