Ultrasound diagnostic apparatus and control method of ultrasound diagnostic apparatus in which an ultrasound probe and a diagnostic apparatus main body are wirelessly connected

An ultrasound diagnostic apparatus in which an ultrasound probe including a transducer array and a diagnostic apparatus main body including a monitor are wirelessly connected and which performs correlation processing between an ultrasound image of a current frame and an ultrasound image of a past frame,

• wherein the ultrasound probe includes
• a transmission and reception circuit configured to cause the transducer array to transmit an ultrasound beam toward a subject, and perform reception focusing processing on a reception signal output from the transducer array that has received an ultrasound echo from the subject to generate a sound ray signal,
• a probe-side processor configured to generate an ultrasound image on the basis of the sound ray signal generated by the transmission and reception circuit, and assign a time stamp for each frame to the ultrasound image generated, and
• a wireless communication circuit configured to wirelessly transmit the ultrasound image, to which the time stamp is assigned by the probe-side processor, to the diagnostic apparatus main body, and
• the diagnostic apparatus main body includes
• a wireless communication circuit configured to receive the ultrasound image wirelessly transmitted from the wireless communication circuit of the ultrasound probe, and
• a main body-side processor configured to determine whether there is continuity of frames between the ultrasound image of the past frame received by the wireless communication circuit of the diagnostic apparatus main body and the ultrasound image of the current frame on the basis of the time stamp assigned to the ultrasound image received by the wireless communication circuit of the diagnostic apparatus main body, assign a weight to the ultrasound image of the past frame received by the wireless communication circuit of the diagnostic apparatus main body on the basis of the continuity of the frames determined, perform correlation processing between the ultrasound image of the current frame and the ultrasound image of the past frame to which the weight is assigned to generate a display image for a display on the monitor, and display the generated display image on the monitor.