Abstract: Provided is a method of operating a medical diagnostic apparatus that displays a medical image, including: modifying an operating state of the medical diagnostic apparatus from a first state to a second state based on sequential first user inputs; storing a history of a plurality of operating states respectively corresponding to the first user inputs; receiving a recovery input; selecting a third state from among the plurality of operating state included in the history, based on the recovery input; and modifying the operating state of the medical diagnostic apparatus from the second state to the third state.

Abstract: A method of displaying an ultrasound image may improve the accuracy of disease diagnosis by enabling a user to recognize an accurate direction of a bloodstream. The method includes: obtaining first Doppler data that is generated by transmitting an ultrasound signal to an object and receiving an echo signal reflected from the object by using a probe; displaying a sound source marker at a first position on a screen; and generating and displaying a first color Doppler image from the first Doppler data in consideration of the first position.

Abstract: Provided is a method of operating a medical diagnostic apparatus that displays a medical image, including: modifying an operating state of the medical diagnostic apparatus from a first state to a second state based on sequential first user inputs; storing a history of a plurality of operating states respectively corresponding to the first user inputs; receiving a recovery input; selecting a third state from among the plurality of operating state included in the history, based on the recovery input; and modifying the operating state of the medical diagnostic apparatus from the second state to the third state.

Abstract: A method of displaying an ultrasound image may improve the accuracy of disease diagnosis by enabling a user to recognize an accurate direction of a bloodstream. The method includes: obtaining first Doppler data that is generated by transmitting an ultrasound signal to an object and receiving an echo signal reflected from the object by using a probe; displaying a sound source marker at a first position on a screen; and generating and displaying a first color Doppler image from the first Doppler data in consideration of the first position.