Provided is a method of operating a medical imaging apparatus, comprising: acquiring a first image of a first type corresponding to a first respiratory state of an object； determining motion information of the object with respect to a respiratory state, based on first and second images of a second type respectively corresponding to the first respiratory state and a second respiratory state of the object； and generating a second image of the first type corresponding to the second respiratory state by applying the motion information to the first image of the first type.
