Ultrasound diagnostic apparatus and a medical image-processing apparatus

An ultrasound diagnostic apparatus comprising:

• an ultrasonic probe configured to transmit ultrasound while scanning, and receive ultrasound reflected by a biological tissue;
• an image data generator configured to generate image data of a tomographic image of the biological tissue, based on reception results of ultrasound;
• a memory configured to store scanning position information showing a scanning position of ultrasound by the ultrasonic probe;
• a display part;
• and
• a controller configured to:
• control the ultrasonic probe at the time of generation of image data of a new tomographic image of the biological tissue so as to transmit ultrasound to a scanning position shown in scanning position information obtained at the time of past generation of image data of a tomographic image;
• control the image data generator so as to generate image data of a new tomographic image based on reception results of the ultrasound;
• and
• cause the display part to display the new tomographic image.

A medical image-processing apparatus comprising:

• an image data generator configured to generate image data of an MPR image, based on volume data of a biological tissue generated by an ultrasound diagnostic apparatus;
• a memory configured to store cross-sectional-position information showing a cross-sectional position of the MPR image;
• a display part;
• and
• a controller configured to:
• control the image data generator so as to, based on cross-sectional-position information of an MPR image from volume data generated on a first date, and volume data generated on a second date, generate image data of an MPR image of the second date in a cross-sectional position shown in cross-sectional information of the first date;
• and
• cause the display part to display an MPR image of the second date.

A medical image-processing apparatus comprising:

• an image data generator configured to generate image data of an MPR image, based on volume data of a biological tissue generated by an ultrasound diagnostic apparatus;
• a memory configured to store cross-sectional-position information showing a cross-sectional position of the MPR image;
• a display part;
• and
• a controller configured to:
• control the image data generator so as to, based on cross-sectional-position information of an MPR image from volume data generated on a first date, and volume data generated on each of the first date and a second date, generate image data of an MPR image of each of the first date and the second date in a cross-sectional position shown in cross-sectional information of the first date;
• and
• cause the display part to display an MPR image of the first date and an MPR image of the second date side by side.

A medical image-processing apparatus that processes volume data generated by an ultrasound diagnostic apparatus for each of a plurality of phases in a stress echocardiography examination of a biological tissue, comprising:

• an image data generator configured to generate image data of an MPR image, based on the volume data;
• a memory configured to store cross-sectional-position information showing a cross-sectional position of the MPR image;
• a display part;
• and
• a controller configured to:
• in a case where a second phase examination is performed after a first phase examination, control the image data generator so as to, based on cross-sectional-position information obtained at the time of generation of image data of an MPR image of the first phase, and volume data of each of the first phase and the second phase, generate image data of an MPR image of each of the first phase and the second phase in a cross-sectional position shown in cross-sectional-position information of the first phase;
• and
• cause the display part to display an MPR image of the first phase and an MPR image of the second phase side by side.