Provided is an ultrasound imaging apparatus including: a data acquisition unit configured to acquire ultrasound data for an object including a first region and a second region used to determine a shape of the first region a controller configured to extract the second region of the object from the ultrasound data, set at least one guide line corresponding to the first region, and measure the at least one guide line corresponding to the first region and a display configured to display measurement information regarding the at least one guide line.
