Ultrasound diagnostic system and method of controlling ultrasound diagnostic system

An ultrasound diagnostic system including an ultrasound diagnostic device that transmits an ultrasound beam toward a subject from an array transducer, and receives an ultrasound echo from the subject to create an ultrasound image, and a workstation connected to the ultrasound diagnostic device, the ultrasound diagnostic system comprising:

• a storage unit configured to store a plurality of ultrasound images in past diagnosis of a plurality of subjects as past images,
• wherein the workstation has
• an input unit for allowing an operator to input various kinds of information,
• a workstation-side display unit, and
• a workstation-side processor configured to control display in the workstation-side display unit, and
• wherein, in a case where a routine test in which a plurality of parts of the subject are sequentially subjected to ultrasound diagnosis in accordance with a determined procedure is performed and in a case where information on the subject is input from the input unit,
• the workstation-side processor is configured to
• make the workstation-side display unit perform a first display in which a plurality of past images in a past routine test of the subject stored in the storage unit are displayed as a thumbnail list and then perform a second display in which one past image and the current image including an ultrasound image newly created in the ultrasound diagnostic device with respect to a part corresponding to the one past image are displayed side by side on a past image region and a current image region adjacent to each other, in an arrangement order of the plurality of past images displayed as the thumbnail list in the first display, and
• make the workstation-side display unit display past images displayed before and after the one past image in the arrangement order of the first display, side by side on both sides of the one past image displayed on the past image region in the second display, so as to be smaller than the one past image.