Controlling thick-slice viewing of breast ultrasound data

• US 20060257009A1
• Filed: 07/18/2006
• Published: 11/16/2006
• Est. Priority Date: 11/24/2000
• Status: Active Grant

• Current Assignee: Fangyi Rao, Shih-Ping Wang
• Original Assignee: Fangyi Rao, Shih-Ping Wang
• Inventors: Wang, Shih-Ping, Rao, Fangyi
• Granted Patent: US 7,313,260 B2
• Time in Patent Office: Days
• US Class Current: 382/128
• CPC Class Codes: A61B 6/463 characterised by displaying multiple images or images and diagnostic data on one display
• CPC Class Codes: A61B 6/502 for diagnosis of breast, i.e. mammography
• CPC Class Codes: A61B 6/5247 combining images from an ionising-radiation diagnostic technique and a non-ionising radiation diagnostic technique, e.g. X-ray and ultrasound
• CPC Class Codes: A61B 6/563 involving image data transmission via a network
• CPC Class Codes: A61B 8/0825 for diagnosis of the breast, e.g. mammography
• CPC Class Codes: A61B 8/406 using means for diagnosing suspended breasts
• CPC Class Codes: A61B 8/4281 characterised by sound-transmitting media or devices for coupling the transducer to the tissue
• CPC Class Codes: A61B 8/4405 Device being mounted on a trolley
• CPC Class Codes: A61B 8/462 characterised by constructional features of the display
• CPC Class Codes: A61B 8/463 characterised by displaying multiple images or images and diagnostic data on one display composite display in devices for short-range imaging with acoustic waves G01S7/52074
• CPC Class Codes: A61B 8/464 involving a plurality of displays
• CPC Class Codes: A61B 8/465 adapted to display user selection data, e.g. icons or menus
• CPC Class Codes: A61B 8/467 characterised by special input means
• CPC Class Codes: A61B 8/5238 for combining image data of patient, e.g. merging several images from different acquisition modes into one image for image registration algorithms G06T7/30
• CPC Class Codes: A61B 8/565 involving data transmission via a network
• CPC Class Codes: Y10S 128/916 Ultrasound 3-D imaging

Abstract

An adjunctive ultrasound mammography system and associated methods are described in which an ultrasound image being displayed near an x-ray mammogram image may be superimposed thereon or thereunder by a user for facilitating rapid comprehension of breast structures and detection of abnormalities therein. In one preferred embodiment, the x-ray mammogram image corresponds to a standard x-ray mammogram view, and the ultrasound image is a thick-slice image representing a thick-slice or slab-like portion of the breast volume substantially parallel to that standard x-ray mammogram view. In another preferred embodiment, the user is permitted to manually manipulate the registration of the ultrasound image with the x-ray mammogram image. It has been found that the manual registration process, which involves manual vernier adjustments responsive to perceived registration differences, can rapidly increase the radiologist'"'"'s perception of the breast structures being displayed by both component images. Even though ultrasound images tend to have substantially different textures and feature emphases than x-ray images, the bimodal thick-slice/x-ray image, alone or in conjunction with the vernier registration process, can often expose or clarify tissue structures hidden in the separate component images, and can often obviate or explain certain noticed structures in the component images.

Claims

1-50. -50. (canceled)

51. A method for facilitating review of information representative of a three-dimensional breast ultrasound volume, comprising:

displaying a two-dimensional thick-slice ultrasound image representative of a sonographic property of the breast within a slab-like subvolume thereof, said slab-like subvolume having a thickness in a range of 2 mm to 20 mm and an elevation from a reference plane;

receiving a user request to vary at least one of the elevation and the thickness of the slab-like subvolume; and

modifying in real time the displayed two-dimensional thick-slice image according to variations made to the at least one of the elevation and thickness of said slab-like subvolume responsive to said user request.

52. The method of claim 51, wherein said variations made to the at least one of the elevation and thickness are smoothly continuous such that the modifications to the two-dimensional thick-slice image appear morphable rather than instantaneous.

53. The method of claim 52, wherein said user requests are received from an input device having, for each of said elevation and said thickness, an “

off”

position indicative of no request for variation and at least one “

on”

position indicative of a request for variation, whereby a look and feel of physical navigation through an elevation-thickness space is achieved.

54. The method of claim 51, wherein said reference plane corresponds to a plane of a compression plate against which the breast was compressed during a volumetric ultrasound scan thereof that yielded the three-dimensional breast ultrasound volume.

55. The method of claim 54, said reference plane comprising a standard x-ray mammogram view plane, further comprising displaying an x-ray mammogram image of the breast taken along said standard x-ray mammogram view plane, said x-ray mammogram image being displayed in close proximity to said thick-slice image for substantially simultaneous viewing therewith.

56. The method of claim 55, wherein said x-ray mammogram image is displayed as an overlay with said thick-slice image and in substantial registration therewith.

57. The method of claim 56, wherein said x-ray mammogram image comprises one of (i) a film-based image physically overlaid on a display monitor displaying said thick-slice image, and (ii) a softcopy image digitally mixed with said thick-slice image.

58. An apparatus for facilitating review of information representative of a three-dimensional breast ultrasound volume, comprising:

a display device; and

a processor coupled with the display device and generating for viewing thereon a two-dimensional thick-slice ultrasound image representative of a sonographic property of the breast within a slab-like subvolume thereof, said slab-like subvolume having a thickness in a range of 2 mm to 20 mm and an elevation from a reference plane;

a user input device for receiving a user request to vary at least one of the elevation and thickness of the slab-like subvolume, said processor varying the at least one of the elevation and thickness responsive to said user request, said processor modifying in real time the two-dimensional thick-slice image according to said variations of the at least one of the elevation and thickness for real time viewing on said display device.

59. The apparatus of claim 58, said processor varying the at least one of the elevation and thickness in a smoothly continuous manner such that the modifications to the two-dimensional thick-slice image appear morphable on said display device rather than instantaneous.

60. The apparatus of claim 59, said user input device comprising, for each of said elevation and said thickness, an “

off”

position indicative of no request for variation and at least one “

on”

position indicative of a request for variation, whereby a look and feel of physical navigation through an elevation-thickness space is provided to the user.

61. The apparatus of claim 58, wherein said reference plane corresponds to a plane of a compression plate against which the breast was compressed during a volumetric ultrasound scan thereof that yielded the three-dimensional breast ultrasound volume.

62. The apparatus of claim 61, said reference plane comprising a standard x-ray mammogram view plane, said processor further generating for viewing on the display device in close proximity to said thick-slice image an x-ray mammogram image of the breast taken along said standard x-ray mammogram view plane.

63. The apparatus of claim 62, wherein said x-ray mammogram image is displayed as an overlay with said thick-slice image and in substantial registration therewith.

64. The apparatus of claim 63, wherein said x-ray mammogram image comprises a softcopy image digitally mixed with said thick-slice image.

65. A computer program product stored on a computer-readable medium for facilitating review of information representative of a three-dimensional breast ultrasound volume, comprising:

computer code for displaying a two-dimensional thick-slice ultrasound image representative of a sonographic property of the breast within a slab-like subvolume thereof, said slab-like subvolume having a thickness in a range of 2 mm to 20 mm and an elevation from a reference plane;

computer code for receiving a user request to vary at least one of the elevation and the thickness of the slab-like subvolume; and

computer code for modifying in real time the displayed two-dimensional thick-slice image according to variations made to the at least one of the elevation and thickness of said slab-like subvolume responsive to said user request.

66. The computer program product of claim 65, wherein said variations made to the at least one of the elevation and thickness are smoothly continuous such that the modifications to the two-dimensional thick-slice image appear morphable rather than instantaneous.

67. The computer program product of claim 66, wherein said computer code for receiving is configured to receive user requests from an input device having, for each of said elevation and said thickness, an “

off”

position indicative of no request for variation and at least one “

on”

position indicative of a request for variation, whereby a look and feel of physical navigation through an elevation-thickness space is achieved.

68. The computer program product of claim 65, wherein said reference plane corresponds to a plane of a compression plate against which the breast was compressed during a volumetric ultrasound scan thereof that yielded the three-dimensional breast ultrasound volume.

69. The computer program product of claim 68, said reference plane comprising a standard x-ray mammogram view plane, further comprising computer code for displaying in close proximity to said thick-slice image an x-ray mammogram image of the breast taken along said standard x-ray mammogram view plane.

70. The computer program product of claim 69, wherein said x-ray mammogram image is displayed by said computer code for displaying as an overlay with said thick-slice image and in substantial registration therewith.