An ultrasound diagnostic apparatus comprising: a probe; an ultrasound transceiver configured to transmit an ultrasound signal to an object through the probe and receive an echo signal reflected from the object; a controller configured to: obtain first data by controlling the ultrasound transceiver to transmit a first ultrasound pulse to the object and receive the echo signal reflected from the object, obtain second data by controlling the ultrasound transceiver to repeat an operation of transmitting a second ultrasound pulse different from the first ultrasound pulse to a first position of the object and receiving the echo signal reflected from the first position of the object a plurality of times at predetermined time intervals, obtain third data by controlling the ultrasound transceiver to repeat an operation of transmitting the second ultrasound pulse to a second position of the object and receiving the echo signal reflected from the second position of the object the plurality of times at predetermined time intervals, and detect the micro-calcification tissues of the first position and the second position by analyzing the obtained second and third data; and a display configured to display an ultrasound image generated based on the obtained first data and an image representing micro-calcification tissues detected in the first position and the second position, characterized in, that the display is configured to: display a color bar representing a plurality of colors corresponding to a dispersion of a phase change over time of the echo signal reflected from the micro-calcification tissues; select a color from the color bar based on the dispersion of the phase change of the echo signal reflected from the micro-calcification tissues; and display the selected color in an area corresponding to the detected micro-calcification tissues included in the ultrasound image. a probe; an ultrasound transceiver configured to transmit an ultrasound signal to an object through the probe and receive an echo signal reflected from the object; a controller configured to: obtain first data by controlling the ultrasound transceiver to transmit a first ultrasound pulse to the object and receive the echo signal reflected from the object, obtain second data by controlling the ultrasound transceiver to repeat an operation of transmitting a second ultrasound pulse different from the first ultrasound pulse to a first position of the object and receiving the echo signal reflected from the first position of the object a plurality of times at predetermined time intervals, obtain third data by controlling the ultrasound transceiver to repeat an operation of transmitting the second ultrasound pulse to a second position of the object and receiving the echo signal reflected from the second position of the object the plurality of times at predetermined time intervals, and detect the micro-calcification tissues of the first position and the second position by analyzing the obtained second and third data; and obtain first data by controlling the ultrasound transceiver to transmit a first ultrasound pulse to the object and receive the echo signal reflected from the object, obtain second data by controlling the ultrasound transceiver to repeat an operation of transmitting a second ultrasound pulse different from the first ultrasound pulse to a first position of the object and receiving the echo signal reflected from the first position of the object a plurality of times at predetermined time intervals, obtain third data by controlling the ultrasound transceiver to repeat an operation of transmitting the second ultrasound pulse to a second position of the object and receiving the echo signal reflected from the second position of the object the plurality of times at predetermined time intervals, and detect the micro-calcification tissues of the first position and the second position by analyzing the obtained second and third data; and a display configured to display an ultrasound image generated based on the obtained first data and an image representing micro-calcification tissues detected in the first position and the second position, characterized in, that the display is configured to: display a color bar representing a plurality of colors corresponding to a dispersion of a phase change over time of the echo signal reflected from the micro-calcification tissues; select a color from the color bar based on the dispersion of the phase change of the echo signal reflected from the micro-calcification tissues; and display the selected color in an area corresponding to the detected micro-calcification tissues included in the ultrasound image. display a color bar representing a plurality of colors corresponding to a dispersion of a phase change over time of the echo signal reflected from the micro-calcification tissues; select a color from the color bar based on the dispersion of the phase change of the echo signal reflected from the micro-calcification tissues; and display the selected color in an area corresponding to the detected micro-calcification tissues included in the ultrasound image.