Patent ID: 8454514

Claim:
An ultrasound diagnostic apparatus comprising: an ultrasonic probe configured to transmit ultrasound while three-dimensionally scanning, and receive ultrasound reflected by a biological tissue; an image data processor configured to generate image data of a tomographic image of biological tissue based on reception results of ultrasound and to generate image data of an MPR (Multi-Planar Reconstruction) image based on the volume data; a memory configured to store cross-sectional-position information showing a cross-sectional position of the tomographic image with regard to a first image data of a first MPR image generated by the image data processor taken at a first time; a display; and a controller configured to control the image data processor so as to, when a second image data representing a tomographic image of the biological tissue is generated by the image data processor based on reception results of new ultrasound taken at a second time, cause the display to display the second image data of a second MPR image having a cross sectional position identical to a cross sectional position of the first image data of the first MPR image.