Ultrasound imaging device including touch screen and control method thereof

1 . A control method of an ultrasound imaging device, the control method comprising:

displaying an ultrasound image in a display area of a touch screen;

displaying a first indicator to overlap on the ultrasound image;

determining a first movement degree and a first movement direction of the ultrasound image based on a first touch input on the touch screen to move the ultrasound image in the display area;

moving the ultrasound image corresponding to the first movement degree and the first movement direction while a position of the first indicator is fixed in the display area;

determining a position of the first indicator to be a first position, in response to a first position determination input of determining the position of the first indicator so as to place the first indicator at the first position on the ultrasound image;

determining a second movement degree and a second movement direction of the ultrasound image based on a second touch input on the touch screen to move the ultrasound image in the display area; and

moving the ultrasound image corresponding to the second movement degree and the second movement direction while the first indicator is fixed at the first position and moves together with the ultrasound image.

2 . The control method of claim 1 , wherein the displaying of the first indicator to overlap on the ultrasound image comprises:

obtaining a user input of selecting a measurement mode; and

displaying the first indicator to overlap on the ultrasound image, the first indicator corresponding to the selected measurement mode.

3 . The control method of claim 1 , further comprising displaying the ultrasound image indicating a zoomed-in area around the first indicator overlapped on the ultrasound image.

4 . The control method of claim 1 , further comprising displaying a second indicator to overlap on the ultrasound image; and

wherein the moving of the ultrasound image in response to the second touch input comprises moving the ultrasound image, while a position of the second indicator is fixed in the display area, in response to the second touch input.

5 . The control method of claim 4 , further comprising determining the position of the second indicator to be a second position, in response to a second position determination input of determining the position of the second indicator so as to place the second indicator at the second position on the ultrasound image.

6 . The control method of claim 4 , further comprising, when the position of the first indicator is determined to be the first position, displaying the ultrasound image indicating a zoomed-in area around the second indicator overlapped on the ultrasound image.

7 . The control method of claim 4 , wherein the moving of the ultrasound image while the position of the second indicator is fixed in the display area comprises fixing the first indicator at the first position and moving the first indicator together with the ultrasound image.

8 . The control method of claim 4 , further comprising displaying a line to overlap on the ultrasound image, the line connecting between the first indicator and the second indicator.

9 . The control method of claim 1 , wherein the first indicator comprises an indicator configured to determine at least one of a position of a scan line of a Doppler image comprised in the ultrasound image or a position of a sample volume gate of the Doppler image.

10 . The control method of claim 9 , further comprising:

displaying a third indicator to overlap on the ultrasound image, the third indicator being configured to determine an angle of the sample volume gate according to a stream line corresponding to a blood flow of an object in the Doppler image; and

rotating the third indicator, while the ultrasound image is fixed, in response to a third touch input of changing the angle of the sample volume gate.

11 . A non-transitory computer-readable recording medium having recorded thereon a program for performing the control method of claim 1 , on a computer.

12 . An ultrasound imaging device comprising:

a touch screen;

a memory storing one or more instructions; and

at least one processor configured to execute the one or more instructions stored in the memory,

wherein the at least one processor is configured to execute the one or more instructions to

display an ultrasound image in a display area of the touch screen,

display a first indicator to overlap on the ultrasound image,

determine a first movement degree and a first movement direction of the ultrasound image based on a first touch input on the touch screen to move the ultrasound image in the display area,

move the ultrasound image corresponding to the first movement degree and the first movement direction while a position of the first indicator is fixed in the display area,

determine a position of the first indicator to be a first position, in response to a first position determination input of determining the position of the first indicator so as to place the first indicator at the first position on the ultrasound image,

determine a second movement degree and a second movement direction of the ultrasound image based on a second touch input on the touch screen to move the ultrasound image in the display area,

move the ultrasound image corresponding to the second movement degree and the second movement direction while the first indicator is fixed at the first position and moves together with the ultrasound image.

13 . The ultrasound imaging device of claim 12 , wherein the at least one processor is configured to execute the one or more instructions to

obtain a user input of selecting a measurement mode, and

display the first indicator to overlap on the ultrasound image, the first indicator corresponding to the selected measurement mode.

14 . The ultrasound imaging device of claim 12 , wherein the at least one processor is configured to execute the one or more instructions to display the ultrasound image indicating a zoomed-in area around the first indicator overlapped on the ultrasound image.

15 . The ultrasound imaging device of claim 12 , wherein the at least one processor is configured to execute the one or more instructions to

display a second indicator to overlap on the ultrasound image, and

move the ultrasound image, while a position of the second indicator is fixed in the display area, in response to the second touch input.

16 . The ultrasound imaging device of claim 15 , wherein the at least one processor is configured to execute the one or more instructions to determine the position of the second indicator to be a second position, in response to a second position determination input of determining the position of the second indicator so as to place the second indicator at the second position on the ultrasound image.

17 . The ultrasound imaging device of claim 15 , wherein the at least one processor is configured to execute the one or more instructions to, when the position of the first indicator is determined to be the first position, display the ultrasound image indicating a zoomed-in area around the second indicator overlapped on the ultrasound image.

18 . The ultrasound imaging device of claim 15 , wherein the at least one processor is configured to execute the one or more instructions to fix the first indicator at the first position and move the first indicator together with the ultrasound image.

19 . The ultrasound imaging device of claim 15 , wherein the at least one processor is configured to execute the one or more instructions to display a line to overlap on the ultrasound image, the line connecting between the first indicator and the second indicator.

20 . The ultrasound imaging device of claim 12 , wherein the first indicator comprises an indicator configured to determine at least one of a position of a scan line of a Doppler image comprised in the ultrasound image or a position of a sample volume gate of the Doppler image.