An ultrasound diagnostic apparatus having image processing circuitry including: an ultrasound image generator generating first ultrasound images from reflected ultrasound a video image acquirer acquiring, from an imaging device, first video images capturing manipulation of a probe performed during generation of the first ultrasound images a relational recorder recording, onto a recording medium, the first ultrasound images and the first video images, in association with each other a data reader reading second ultrasound images and second video images from the recording medium, the second ultrasound images generated and recorded onto the recording medium in the past, and the second video images capturing manipulation of the probe performed during generation of the second ultrasound images and a screen composer composing a screen by arranging the first ultrasound images, the second ultrasound images and the second video images, and displaying the screen on a display device.
