Abstract: An embodiment for adaptively performing persistence processing on elastic images in an ultrasound system is disclosed. An ultrasound data acquisition unit sequentially acquires a plurality of ultrasound data frames based on ultrasound echo signals reflected from a target object by repeatedly applying and releasing stress to/from the target object. A processing unit calculates inter-frame displacements of the frames between the ultrasound data frames to form elastic images. The processing unit adaptively performs persistence processing on the elastic images in consideration of application or release of the stress to/from the target object.

Abstract: An ultrasound system and a method of controlling the ultrasound system are provided. The ultrasound system may receive, from a user, a selection command for a first mode among a plurality of display modes, set a target region based on region setting information that is input from the user, when the first mode is a wide mode, and extract an ultrasound image in the target region when an image extraction command is input from the user.