Ultrasound diagnostic apparatus, ultrasound diagnostic method, and non-transitory computer-readable recording medium

An ultrasound diagnostic apparatus that transmits ultrasound toward a subject by driving an ultrasound probe in which a plurality of transducers are arranged in an array, receives a reception signal that is based on waves reflected within the subject from the ultrasound probe, and generates an ultrasound image, the ultrasound diagnostic apparatus comprising:

• a hardware processor that sets a scan condition so that trapezoidal scanning is performed by the ultrasound probe;
• and
• a transmission section that controls driving of the ultrasound probe based on the scan condition, wherein
• when a point where the normal line of a transducer surface in the center of the ultrasound probe when viewed along the scan direction and the acoustic line of the ultrasound intersect is defined as a virtual origin,
• the hardware processor sets the scan condition so that the virtual origins of the acoustic lines near the edges of the ultrasound probe are closer to the transducer than the virtual origins of the acoustic lines in or around the center.

An ultrasound diagnostic method that involves transmitting ultrasound toward a subject by driving an ultrasound probe in which a plurality of transducers are arranged in an array, receiving a reception signal that is based on waves reflected within the subject from the ultrasound probe, and generating an ultrasound image, the ultrasound diagnostic method comprising:

• setting a scan condition so that trapezoidal scanning is performed by the ultrasound probe;
• and
• controlling driving of the ultrasound probe based on the scan condition, wherein
• when an angle between adjacent acoustic lines is defined as an inter-acoustic line angle,
• in setting the scan condition, the scan condition is set so that the inter-acoustic line angles in or around the center of the ultrasound probe are smaller than the inter-acoustic line angles near the edges when viewed along the scan direction.

A non-transitory computer-readable recording medium storing a program causing a computer of an ultrasound diagnostic apparatus to execute a predetermined process, the ultrasound diagnostic apparatus transmitting ultrasound toward a subject by driving an ultrasound probe in which a plurality of transducers are arranged in an array, receiving a reception signal that is based on waves reflected within the subject from the ultrasound probe, and generating an ultrasound image, the predetermined process comprising:

• setting a scan condition so that trapezoidal scanning is performed by the ultrasound probe;
• and
• controlling driving of the ultrasound probe based on the scan condition, wherein
• when an angle between adjacent acoustic lines is defined as an inter-acoustic line angle,
• in setting the scan condition, the scan condition is set so that the inter-acoustic line angles in or around the center of the ultrasound probe when viewed along the scan direction are smaller than the inter-acoustic line angles near the edges when viewed along the scan direction.