Dynamic contrast visualization (DCV)

• US 20060072799A1
• Filed: 08/26/2005
• Published: 04/06/2006
• Est. Priority Date: 08/26/2004
• Status: Active Grant

• Current Assignee: LumenIQ, Inc.
• Original Assignee: LumenIQ, Inc.
• Inventors: McLain, Peter B.
• Granted Patent: US 7,283,654 B2
• Time in Patent Office: Days
• US Class Current: 382/128
• CPC Class Codes: G06T 11/206 Drawing of charts or graphs
• CPC Class Codes: G06T 2207/30004 Biomedical image processing
• CPC Class Codes: G06T 5/40 using histogram techniques
• CPC Class Codes: G06T 5/90 Dynamic range modification of images or parts thereof
• CPC Class Codes: G06T 5/92 based on global image properties

Abstract

Magnitude enhancement analysis of medical and dental images of tissue or organs such as MRI, PET, CT and x-ray images configured to display intensity-related features of high-bit images, such as grayscale without distorting the underlying intensity unless desired, and/or enhancing perception of saturation, hue, color channels and other space dimensions in a digital image, and external datasets related to a 2D image. In a preferred embodiment, the tissue or organ has been administered a contrast agent prior to the image being taken. In a more preferred embodiment, a series of images of the same tissue or organ has been taken over time to show changes in the tissue or organ over time.

Claims

1. A method for viewing a biological or medical image of tissue or an organ wherein the tissue or organ has been treated with a contrast agent comprising:

a) providing an at least 2-dimensional high bit level digital image of the biological or medical image;

b) subjecting the medical image to magnitude enhancement analysis such that at least one relative magnitude across at least a substantial portion of the image is depicted in an additional dimension relative to the at least 2-dimensions to provide a magnitude enhanced image such that additional levels of magnitudes are substantially more cognizable to a human eye compared to the 2-dimensional image without the magnitude enhancement analysis;

c) displaying a selected portion of the enhanced medical image on a display comprising a display system wherein the display system has a bit level display capability less than the bit level of the digital medical image; and

d) providing a moveable window configured to display a selected portion of the medical image such that the window can move the selected portion among an overall range of the bit level information in the high bit level image.

2. The method of claim 1 wherein the medical image is an image selected from the group consisting of a magnetic resonance image (MRI), a computational tomography (CT) scan image, a positron emission tomography (PET) scan image, an x-ray image, an electron microscopy (EM) image, a light microscopy (LM) and an ultrasound image.

3. The method of claims 1 or 2 wherein the contrast agent is selected from the group consisting of barium sulfate contrast agent, an iodinated contrast agent, an ionic contrast agent and an nonionic contrast agent.

4. The method of claim 3 wherein ionic contrast agent is selected from the group consisting of acetrizoic acid derivatives, diatrizoic acid derivatives, iothalamic acid derivatives, ioxithalamic acid derivatives, metrizoic acid derivatives, iodamide, lypophylic agents, aliphatic acid salts, iodipamide and ioglycamic acid.

5. The method of claim 3 wherein the nonionic contrast agent is selected from the group consisting of gadolinium, metrizamide, iopamidol, iohexol, iopromide, iobitridol, iomeprol, iopentol, ioversol, ioxilan and a nonionic dimeric contrast agent.

6. The method of claim 5 wherein the dimeric contrast agent is iodixanol or iotrolan.

7. The method of claim 1 wherein the magnitude is grayscale.

8. The method of claim 1 wherein the magnitude comprises at least one of hue, lightness, or saturation.

9. The method of claim 1 wherein the magnitude comprises a combination of values derived from at least two of grayscale, hue, lightness, or saturation.

10. The method of claim 1 wherein the magnitude comprises an average intensity defined by an area operator centered on a pixel within the image.

13. The method of claim 1 wherein the magnitude enhancement analysis is a dynamic magnitude enhancement analysis.

14. The method of claim 13 wherein the dynamic analysis comprises incorporating the dynamic analysis into a cine loop.

15. The method of claims 13 or 14 wherein the dynamic analysis comprises at least rolling, tilting or panning the image.

43. Computer-implemented programming that performs the automated elements of the method of any one of claims 1, 16 or 32.

44. A computer comprising computer-implemented programming that performs the automated elements of the method of any one of claims 1, 16 or 32.

45. The computer of claim 44 wherein the computer comprises a distributed network of linked computers.

46. The computer of claim 45 wherein the computer comprises a handheld computer, and the method of claim 1 is implemented on the handheld computer.

47. The computer of claim 46 wherein the computer comprises a wirelessly connected computer, and the method of claim 1 is implemented on the wireless computer.

48. A networked computer system comprising computer-implemented programming that performs the automated elements of the method of claims 1.

49. The networked computer system of claim 48 wherein the networked computer system comprises a handheld wireless computer, and the method of claim 1 is implemented on the handheld wireless computer.

50. A networked computer system comprising a computer according to claim 43.

11. (canceled)

12. (canceled)

16. A method of determining and visualizing a change in a tissue or organ comprising:

a) providing a first at least 2-dimensional digital image of tissue or organ of an individual at an initial time;

b) providing additional digital images of substantially the same tissue or organ at later periods of time;

c) subjecting the images to magnitude enhancement analysis such that at least one relative magnitude across at least a substantial portion of each image is depicted in an additional dimension relative to the at least 2-dimensions to provide magnitude enhanced images such that additional levels of magnitudes are substantially more cognizable to a human eye compared to the 2-dimensional image without the magnitude enhancement analysis;

d) comparing the magnitude enhanced images to each other to indicate changes in at least on biological, chemical or physical property of the tissue or organ over time.

17. The method of claim 16 wherein the medical images are an image selected from the group consisting of MRI images, CT scan images, PET scan images, x-ray images, EM, LM and ultrasound images.

18. The method of claim 17 wherein the first medical image of the tissue or organ is taken prior to treating the tissue or organ with a contrast agent and subsequent images are taken after treating the tissue or organ with a contrasting agent.

19. The method of claim 18 wherein the contrast agent is selected from the group consisting of barium sulfate contrast agent, an iodinated contrast agent, an ionic contrast agent and an nonionic contrast agent.

20. The method of claim 19 wherein ionic contrast agent is selected from the group consisting of acetrizoic acid derivatives, diatrizoic acid derivatives, iothalamic acid derivatives, ioxithalamic acid derivatives, metrizoic acid derivatives, iodamide, lypophylic agents, aliphatic acid salts, iodipamide and ioglycamic acid.

21. The method of claim 19 wherein the nonionic contrast agent is selected from the group consisting of gadolinium, metrizamide, iopamidol, iohexol, iopromide, iobitridol, iomeprol, iopentol, ioversol, ioxilan and a nonionic dimeric contrast agent.

22. The method of claim 21 wherein the dimeric contrast agent is iodixanol or iotrolan.

23. The method of claim 16 wherein the magnitude is grayscale.

24. The method of claim 16 wherein the magnitude comprises at least one of hue, lightness, or saturation.

25. The method of claim 16 wherein the magnitude comprises a combination of values derived from at least two of grayscale, hue, lightness, or saturation.

26. The method of claim 16 wherein the magnitude comprises an average intensity defined by an area operator centered on a pixel within the image.

29. The method of claim 16 wherein the magnitude enhancement analysis is a dynamic magnitude enhancement analysis.

30. The method of claim 29 wherein the dynamic analysis comprises incorporating the dynamic analysis into a cine loop.

31. The method of claims 29 or 30 wherein the dynamic analysis comprises at least rolling, tilting and panning the image.

27. (canceled)

28. (canceled)

32. A method of analyzing a tissue or organ wherein the tissue or organ has been treated with a contrast agent comprising:

a) providing an at least 2-dimensional digital image of the tissue or organ comprising a plurality of color space dimensions;

b) subjecting the 2-dimensional digital image to magnitude enhancement analysis such that a relative magnitude for at least one color space dimension but less than all color space dimensions of the image is depicted in an additional dimension relative to the at least 2-dimensions to provide a magnitude enhanced image such that additional levels of magnitudes of the color space dimension are substantially more cognizable to a human eye compared to the 2-dimensional image without the magnitude enhancement analysis;

c) displaying at least a selected portion of the magnitude enhanced image on a display;

d) analyzing the magnitude enhanced image to determine at least one feature of the color space dimension that would not have been cognizable to a human eye without the magnitude enhancement analysis.

33. The method of claim 32 wherein the method further comprises determining an optical density of at least one object in the image.

35. The method of claim 32 or 33 wherein the object is breast tissue.

36. The method of claim 32 or 33 wherein the magnitude enhancement analysis is a dynamic magnitude enhancement analysis.

37. The method of claim 36 wherein the dynamic analysis comprises incorporating the dynamic analysis into a cine loop.

38. The method of claim 36 wherein the dynamic analysis comprises at least rolling, tilting and panning the image.

39. The method of claim 32 wherein the contrast agent is selected from the group consisting of barium sulfate contrast agent, an iodinated contrast agent, an ionic contrast agent and an nonionic contrast agent.

40. The method of claim 39 wherein ionic contrast agent is selected from the group consisting of acetrizoic acid derivatives, diatrizoic acid derivatives, iothalamic acid derivatives, ioxithalamic acid derivatives, metrizoic acid derivatives, iodamide, lypophylic agents, aliphatic acid salts, iodipamide and ioglycamic acid.

41. The method of claim 39 wherein the nonionic contrast agent is selected from the group consisting of gadolinium, metrizamide, iopamidol, iohexol, iopromide, iobitridol, iomeprol, iopentol, ioversol, ioxilan and a nonionic dimeric contrast agent.

42. The method of claim 41 wherein the dimeric contrast agent is iodixanol or iotrolan.

34. (canceled)