An MRI (magnetic resonance imaging) is another medical diagnostic test used to help get clear images of the inside of your body. However, an MRI uses a magnetic field and radiofrequency pulses to create these internal body images rather than x-rays. The magnetic field and radio waves produce a pattern by bouncing off the fat and water molecules in a patient’s body, creating an image.
During an MRI scan, you will be asked to lie on a table before being rolled into the scanning machine. Because the magnets have to be close to the body in order to produce accurate images, this tube can seem tight. The device also generates loud sounds while operating, so some patients feel a bit anxious during the process. However, you will be asked to remain still during the MRI scan in order to get the images. It is hard to predict the exact length of the procedure, but it will generally take 20 to 60 minutes to get all of the necessary images.