Magnetic resonance imaging is a technique that produces images based on the presence of hydrogen protons within fluids, fat and other soft tissues in the body. Using a powerful magnet, gradient and radiofrequency coils, signals are generated from the predetermined regions of the body and slices are selected from these areas which are then displayed as cross-sectional images. MRI can display a variety of images of the same body section by tweaking the many parameters provided in the operator console. Concentration of hydrogen protons, the presence of other magnetic susceptible protons, the direction and speed of blood flow and the effect of contrast administration on various tissues contained in that region, affect the appearance of the images when different MRI parameters are employed. For example, by altering the relationship of T1 and T2 relaxation time, acquiring proton density images, obtaining susceptibility-weighted images, diffusion and ADC maps(produced by the extent of Brownian motion in the tissues), fat and blood flow imaging, diffusion tensor imaging and by MR spectroscopy, a range of images conveying a variety of information can be obtained from the same selected slices. In this chapter, we will look at the MRI equipment, understand how to prepare the MRI suite, safety issues and questions often asked.