Ultrasonic diagnostic apparatus and method of displaying ultrasonic image
View Patent ↗To provide an ultrasonic diagnostic apparatus capable of producing a three-dimensional image of an object for an organ region within a range of elasticity values desired by an operator and allowing the operator to recognize the region easily, elasticity value data included in a desired elasticity value range among elasticity value data constituting a volume data are selected and rendered. Whereby, a three-dimensional elasticity image in the set elasticity value range is produced. An area corresponding to the elasticity value range is displayed on at least one of a two-dimensional elasticity image and a section image.
1. An ultrasonic diagnostic apparatus comprising:
an ultrasonic probe which transmits an ultrasonic wave to an object to be examined and receives a reflected echo signal from the object; and
an ultrasonic diagnostic system comprising circuitry, memory, a display and an input device to perform operations to:
transmit ultrasonic waves into the object via the ultrasonic probe;
produce a section image of the object based on the reflected echo signal via the ultrasonic probe;
process the reflected echo signal to produce a two-dimensional elasticity image of an elasticity value representing elasticity;
produce volume data formed of a plurality of the two-dimensional elasticity images;
select and render elasticity value data of the volume data included in a desired elasticity value range to produce a three-dimensional elasticity image of the elasticity value data in the elasticity value range;
display the three-dimensional elasticity image and at least one of the two-dimensional elasticity image and the section image showing an area corresponding to the elasticity value range;
set the elasticity value range by the input device; and
display the area corresponding to the elasticity value range on at least one of the two-dimensional elasticity image and the section image only for a predetermined time period based on the set the elasticity value range by the input device.
2. The ultrasonic diagnostic apparatus according to claim 1 , wherein ultrasonic diagnostic system performs operations to display an area of the two-dimensional elasticity image outside the elasticity value range with a mask placed thereon.
3. The ultrasonic diagnostic apparatus according to claim 2 , wherein the ultrasonic diagnostic system performs operations to display a combined image provided by adding the two-dimensional elasticity image and the section image at a ratio, the ratio in an area within the elasticity value range being different from the ratio in the area with the mask placed thereon.
4. The ultrasonic diagnostic apparatus according to claim 3 , wherein the ultrasonic diagnostic system performs operations to display the combined image provided by adding the two-dimensional elasticity image at the ratio set at zero in the area with the mask placed thereon.
5. The ultrasonic diagnostic apparatus according to claim 2 , wherein the ultrasonic diagnostic system performs operations to display an area of the two-dimensional elasticity image within the elasticity value range or the area with the mask placed thereon filled in with a single hue.
6. The ultrasonic diagnostic apparatus according to claim 5 , wherein the single hue is set in accordance with an elasticity value in the area of the two-dimensional elasticity image to be filled in with the hue.
7. The ultrasonic diagnostic apparatus according to claim 1 , wherein the ultrasonic diagnostic system performs operations to display a line representing an outline of the elasticity value range in the two-dimensional elasticity image.
8. The ultrasonic diagnostic apparatus according to claim 1 , wherein the two-dimensional elasticity image is a color image having a different hue provided in accordance with an elasticity value, and the ultrasonic diagnostic system performs operations to display a color map representing the relationship between the elasticity value and the hue by adding a display showing the elasticity value range thereto.
9. The ultrasonic diagnostic apparatus according to claim 1 , wherein the two-dimensional elasticity image is a color image having a different hue provided in accordance with an elasticity value, and the ultrasonic diagnostic system performs operations to display the elasticity value range with a numeric value by adding a hue corresponding to the elasticity value range thereto.
10. A method of displaying an ultrasonic image using an ultrasonic probe which transmits an ultrasonic wave to an object to be examined and receives a reflected echo signal from the object and an ultrasonic diagnostic system comprising circuitry, memory, a display and an input device, the method comprising:
transmitting ultrasonic waves into the object via the ultrasonic probe;
producing a section image of the object based on the reflected echo signal via the ultrasonic probe;
processing the reflected echo signal to produce a two-dimensional elasticity image of an elasticity value representing elasticity;
producing volume data from a plurality of the two-dimensional elasticity images;
selecting and rendering elasticity value data of the volume data included in a desired elasticity value range to produce a three-dimensional elasticity image of the elasticity value data in the elasticity value range;
displaying the three-dimensional elasticity image and at least one of the two-dimensional elasticity image and the section image showing an area corresponding to the elasticity value range;
setting the elasticity value range by the input device; and
displaying the area corresponding to the elasticity value range on at least one of the two-dimensional elasticity image and the section image only for a predetermined time period based on the set the elasticity value range by the input device.
11. The method of displaying an ultrasonic image according to claim 10 , wherein the display step displays an area of the two-dimensional elasticity image outside the elasticity value range with a mask placed thereon.
12. The method of displaying an ultrasonic image according to claim 11 , wherein the display step displays a combined image provided by adding the two-dimensional elasticity image and the section image at a ratio, the ratio in an area within the elasticity value range being different from the ratio in the area with the mask placed thereon.
13. The method of displaying an ultrasonic image according to claim 11 , wherein the display step displays an area of the two-dimensional elasticity image within the elasticity value range or the area with the mask placed thereon filled in with a single hue.
14. The method of displaying an ultrasonic image according to claim 10 , wherein the display step displays a line representing an outline of the elasticity value range in the two-dimensional elasticity image.