Ultrasound diagnostic apparatus and operation method thereof

An ultrasound diagnostic apparatus comprising:

• an ultrasound probe including a housing in which a first transducer array is disposed at one end and a second transducer array is disposed at the other end;
• a sensor that is provided in the housing and outputs information for acquiring motion information of the ultrasound probe or angle information of the ultrasound probe;
• and
• a processor that acquires used array information indicating which of the first transducer array and the second transducer array is used,
• wherein the processor is configured to acquire the motion information or the angle information based on the information outputted by the sensor and determine a motion or a position of the ultrasound probe with respect to a subject based on the used array information and one of the motion information or the angle information,
• the first transducer array is a convex transducer array and the second transducer array is a linear transducer array,
• the sensor is a sensor for acquiring the motion information,
• the processor is configured to acquire the motion information based on the information outputted by the sensor and identify the motion of the ultrasound probe with respect to the subject based on the motion information and the used array information,
• the processor is configured to execute processing associated with the identified motion,
• the processor is configured to, with a used array of the first transducer array and the second transducer array as a first array and an unused array of the first transducer array and the second transducer array as a second array, identify a first motion in which the ultrasound probe moves in a direction from the first array toward the second array and a second motion in which the ultrasound probe moves in a direction from the second array toward the first array, and
• the processor is configured to execute a first processing in a case where the motion of the ultrasound probe is determined to be the first motion and execute a second processing different from the first processing in a case where the motion of the ultrasound probe is determined to be the second motion.