An MRI apparatus includes: an image processor that generates a real-time image and a scout image by using an MR signal that is received from an object; a display that displays slices, which respectively correspond to portions of the object, on the scout image; and an input interface that receives a user input corresponding to at least one of the real-time image and the scout image. The image processor updates the real-time image based on the user input, and the display displays the updated real-time image.