System and method for visualizing scene shift in ultrasound scan sequence

• US 6,824,514 B2
• Filed: 10/11/2002
• Issued: 11/30/2004
• Est. Priority Date: 10/11/2002
• Status: Expired due to Fees

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Thiele, Karl E., Poland, McKee D.
• Primary Examiner(s): IMAM, ALI M
• Application Number:
  US10/270,278
• Publication Number:
  US 20040073111A1
• Time in Patent Office: 781 Days
• Field of Search: 600/437-472, 736/25, 736/26, 367/7, 367/11, 367/130, 367/138, 128/916
• US Class Current: 600/437
• CPC Class Codes: A61B 8/483 involving the acquisition of a 3D volume of data
• CPC Class Codes: G06T 7/254 involving subtraction of images
• CPC Class Codes: G06T 7/33 using feature-based methods

Abstract

A system and method for visualizing scene shift over successive ultrasound scan frames is disclosed. In one embodiment the invention is a system for real-time visualization of scene shift in an ultrasound scan, comprising an ultrasound receiver for developing a first ultrasound image and a second ultrasound image, border formation software for determining a first border corresponding to the first ultrasound image and a second border corresponding to the second ultrasound image, and image misalignment detection software for overlaying the first border on the second border to determine whether the first border aligns with the second border. Corresponding systems, methods and computer-readable media are also disclosed.

Claims

1. A system for real-time visualization of scene shift of an object in an ultrasound scan, comprising:

means for developing a first ultrasound image;

means for determining a first border of the object in the first ultrasound image;

means for developing a second ultrasound image;

means for determining a second border of the object in the second ultrasound image;

means for forming an overlay of the first border on the second border; and

display means for simultaneously displaying only the second border and the overlay of the first border on the second border to a user without displaying the entire object to enable the user to determine whether the first border aligns with the second border.

2. The system of claim 1, wherein the means for forming the overlay comprises means for directing the display means to highlight the first border in a color different from a color of the second border.

3. The system of claim 1, further comprising:

means for capturing a plurality of ultrasound images corresponding to a time cycle;

means for developing a corresponding plurality of reference images; and

means for forming an overlay of one of the plurality of reference images over a subsequent image, where the reference image is selected based upon a trigger event,

the display means being arranged to display the subsequent image and the overlay of the one of the plurality of reference images over the subsequent image.

4. The system of claim 1, wherein the display means are arranged to display the object in the second ultrasound image in a different color than a color in which the second border is displayed.

5. The system of claim 1, wherein the display means are arranged to display the first border differently than the second border.

6. A system for real-time visualization of scene shift in an ultrasound scan, comprising:

first developing means for developing a first ultrasound image;

second developing means for developing a plurality of additional ultrasound images after the first ultrasound image is developed;

subtracting means for subtracting the first ultrasound image from a first one of the plurality of additional ultrasound images to generate a first difference image and for subtracting each of the plurality of additional ultrasound images from an immediately following developed one of the plurality of additional ultrasound images to generate additional difference images;

indicator means for sequentially displaying the first and additional difference images to enable a user to determine whether the first ultrasound image aligns with the first one of the plurality of additional ultrasound images and whether each of the plurality of additional ultrasound images aligns with the immediately following one of the plurality of additional ultrasound images.

7. The system of claim 6, wherein the indicator means comprises means for indicating portions of the first ultrasound image that are misaligned with respect to the first one of the plurality of additional ultrasound images.

8. The system of claim 6, wherein the indicator means are arranged to display a relative misalignment between the first ultrasound image and the first one of the plurality of additional ultrasound images to the user.

9. A method for real-rime visualization of scene shift of an object in an ultrasound scan, comprising:

developing a first ultrasound image;

determining a first border of the object in the first ultrasound image;

developing a second ultrasound image;

determining a second border of the object in she second ultrasound image;

forming an overlay of the first border on the second border; and

simultaneously displaying only the second border and the overlay of the first border on the second border to a user without displaying the entire object to enable the user to determine whether the first border aligns with the second border.

10. The method of claim 9, wherein the displaying step comprises highlighting the first border in a color different from a color of the second border.

11. The method of claim 9, wherein the displaying step comprises the step of displaying the object in the second ultrasound image in a different color than a color in which the second border is displayed.

12. The method of claim 9, wherein the displaying step comprises the step of displaying the first border differently than the second border.

13. The method of claim 9, further comprising:

developing at least one additional ultrasound image;

determining a border of the object in each of the at least one additional ultrasound image;

forming an overlay of the first border, the second border and any preceding determined borders on the border of the object in each of the at least one additional ultrasound image; and

simultaneously displaying the border of the object in each of the at least one additional ultrasound image and the overlay of the first border, the second border and any preceding determined borders on the border of the object in each of the at least one additional ultrasound image.

14. A method for real-time visualization of scene shift in an ultrasound scan, comprising:

developing a first ultrasound image;

developing a plurality of additional ultrasound images after the first ultrasound image is developed;

subtracting the first ultrasound image from a first one of the plurality of additional ultrasound images to generate a first difference image;

displaying the first difference image to enable a user to determine whether the first ultrasound image aligns with the first one of the plurality of additional ultrasound images;

subtracting each of the plurality of additional ultrasound images from an immediately following developed one of the plurality of additional ultrasound images to generate additional difference images; and

sequentially displaying the additional difference images to enable a user to determine whether each of the plurality of additional ultrasound images aligns with the immediately following one of rho plurality of additional ultrasound images.

15. The method of claim 14, wherein she displaying step comprises indicating portions of the first ultrasound image that are misaligned with respect to the first one of the plurality of additional ultrasound images.

16. The method of claim 14, wherein the displaying step comprises indicating a relative misalignment between the first ultrasound image and the first one of the plurality of additional ultrasound images to the user.

17. A system for real-rime visualization of scene shift of an object in an ultrasound scan, comprising:

an ultrasound receiver for developing a first ultrasound image and a second ultrasound image;

border formation software coupled to rho ultrasound receiver for determining a first border of the object in the first ultrasound image and a second border of the object in the second ultrasound image;

image misalignment detection software coupled to the border formation software for forming an overlay of the first border on the second border; and

a display coupled to the border formation software and the inane misalignment software for simultaneously displaying only the second border and the overlay of the first order on the second border to a user without displaying the entire object to enable the user to determine whether the first border aligns with the second border.

18. The system of claim 17, wherein the image misalignment detection software is arranged to direct the display to highlight the first border in a color different from a color of the second border.

19. The system of claim 17, wherein the ultrasound receiver captures a plurality of ultrasound images corresponding to a time cycle and develops a corresponding plurality of reference images, and overlays one of the plurality of reference images ever a subsequent image, where the reference image is selected based upon a trigger event, the display being arranged to display the subsequent image and the overlay of the one of the plurality of reference images ever the subsequent image.

20. The system of claim 17;

wherein the display is arranged to display the object in the second ultrasound image in a different color than a color in which the second border is displayed.

21. The system of claim 17, wherein the display is arranged to display the first border differently than the second border.

22. A computer-readable medium having a program for real-time visualization of scene shift of an object in an ultrasound scan, the program comprising logic for:

developing a first ultrasound image;

determining first border of the object in the first ultrasound image;

developing a second ultrasound image;

determining a second border of the object in the second ultrasound image;

forming an overlay of the first border on one second border; and

simultaneously displaying only the second border and the overlay of the first border on the second border to a user without displaying the entire object to enable the user to determine whether the first border aligns with The second border.

23. The program of claim 22, wherein the displaying step comprises highlighting the first border in a color different from a color of the second border.

24. A computer-readable medium having a program for real-time visualization of scene shift in an ultrasound scan, the program comprising logic for:

developing a first ultrasound image;

developing a plurality of additional ultrasound images after the first ultrasound image is developed;

subtracting the first ultrasound image from a first one of the plurality of additional ultrasound images to generate a first difference image;

displaying the first difference image to enable a user to determine whether the first ultrasound image aligns with the first one of the plurality of additional ultrasound images;

subtracting each of the plurality of additional ultrasound images from an immediately following developed one of the plurality of additional ultrasound images to generate additional difference images; and

sequentially displaying the additional difference images to enable a user to determine whether each of the plurality of additional ultrasound images aligns with the immediately following one of the plurality of additional ultrasound images.

25. The program of claim 24, further comprising logic for indicating portions of the first ultrasound image that are misaligned with respect to the first one of the plurality of additional ultrasound images.

26. The program of claim 24, further comprising logic for indicating a relative misalignment between the first ultrasound image and the first one of the plurality of additional ultrasound images to the user.

27. A system for real-time visualization of relative probe position in an ultrasound scan sequence, comprising:

means for developing a first ultrasound reference image;

means for developing a graphical representation of the reference image for display;

means for developing a second ultrasound image;

means for forming an overlay of the graphical representation of the reference image on the second ultrasound image; and

display means for simultaneously displaying only the second ultrasound image and the overlay of the graphical representation of the reference image on the second ultrasound image without displaying the entire reference image.

28. The system of claim 27, wherein the display means are arranged to display the reference image in color different than a color of the second ultrasound image.

29. The system of claim 27, wherein the graphical representation of the reference image is stored on the system for use as reference for a second of ultrasound scan acquired in a separate scan sequence from the one use to acquire the reference image.

30. A method for real-time visualization of relative probe position in an ultrasound scan sequence, comprising:

developing a first ultrasound reference image;

developing a graphical representation of the reference image for display;

developing a second ultrasound image;

forming an overlay of the graphical representation of the reference image on the second ultrasound image; and

simultaneously displaying only the second ultrasound image and the overlay of the graphical representation of the reference image on toe second ultrasound image without displaying the entire reference image.

31. The method of claim 30, wherein the displaying step comprises displaying the reference image in a color different than a color of the second ultrasound image.

32. The method of claim 30, further comprising storing the graphical representation of the reference image on the system for use as a reference for a second ultrasound scan acquired in a separate scan sequence from the one used to acquire rho reference image.

33. A system for real-time visualization of scene shift of an object in an ultrasound scan, comprising:

mean for developing a first ultrasound image;

mean for determining a first border of the object in the first ultrasound image;

means for developing a second ultrasound image;

means for determining a second border of the object in the second ultrasound image;

means for forming an overlay of the first border on the second border;

means for capturing a plurality of ultrasound images corresponding to a time cycle;

means for developing a corresponding plurality of reference images;

means for forming an overlay of one of the plurality of reference images over a subsequent image, where the reference image is selected based upon a trigger event; and

display means for simultaneously displaying the second border and the overlay of the first border on the scored border to a user to enable the user to determine whether the first border aligns with the second border, the display means being arranged to display the subsequent image and the overlay of the one at the plurality of reference images over the subsequent image.