Medical diagnostic ultrasound system and method for scanning plane orientation

• US 6,607,488 B1
• Filed: 03/02/2000
• Issued: 08/19/2003
• Est. Priority Date: 03/02/2000
• Status: Expired due to Term

• Current Assignee: Siemens Medical Solutions USA Incorporated (Siemens AG)
• Original Assignee: Acuson Corporation (Siemens AG)
• Inventors: Jackson, John I., Hossack, John A.
• Primary Examiner(s): Jaworski, Francis J.
• Assistant Examiner(s): Imam, Ali M.
• Application Number:
  US09/517,014
• Time in Patent Office: 1,265 Days
• Field of Search: 600/437, 600/443-447, 600/459-467, 600/424, 600/471, 128/916, 607/122
• US Class Current: 600/443
• CPC Class Codes: A61B 8/12 in body cavities or body tracts, e.g. by using catheters catheters per se A61M25/00
• CPC Class Codes: A61B 8/13 Tomography A61B8/10, A61B8/12 take precedence; tomography for radiation diagnosis A61B6/02
• CPC Class Codes: A61B 8/4254 using sensors mounted on the probe
• CPC Class Codes: A61B 8/461 Displaying means of special interest
• CPC Class Codes: G01S 15/06 Systems determining the position data of a target
• CPC Class Codes: G01S 15/8993 Three dimensional imaging systems
• CPC Class Codes: G01S 7/52068 Stereoscopic displays; Three-dimensional displays; Pseudo 3D displays G01S15/8993 takes precedence

Abstract

A method and system for indicating the position and orientation of a scan plane relative to a patient is provided. The image as presented on a display is oriented in accordance with the orientation of a transducer. The orientation may provide for displaying an image where the transducer is not in a transducer up or transducer down position, but is rotated away from vertical of the display. Alternatively or additionally, a two or three-dimensional graphical generic representation is provided with a scan plane indicated as a polygon or image rendering within a generic representation to show relative positioning of the scan plane with respect to the patient.

Claims

1. A medical diagnostic ultrasound two-dimensional image representing a two-dimensional region within a body and comprising an edge having at least one point corresponding to a position substantially adjacent to a transducer, an improvement of the display comprising:

the image being oriented such that a direction orthogonal to a center of a face of the transducer is at an angle of rotation away from vertical on a display, the angle independent of a user selected reference point on a transducer-up or down image.

2. The display of claim 1 wherein the image is displayed such that a line perpendicular to a scan plane of the two-dimensional region of the body on the display is perpendicular to the display.

3. The display of claim 1 wherein the display is substantially free of three-dimensional representations rendered as a function of a scan of the body.

4. The display of claim 1 wherein the angle is responsive to a user selection.

5. The display of claim 1 wherein the angle is responsive to orientation information from a transducer position sensor.

6. The display of claim 1 further comprising a generic representation indicative of a position of the body.

7. The display of claim 6 wherein the generic representation comprises a three-dimensional compass graphic.

8. The display of claim 6 wherein the generic representation comprises a generic representation of at least a portion of the body.

9. The display of claim 6 further comprising a polygon positioned in the generic representation, the polygon comprising a same shape as the two-dimensional image wherein the generic representation is adjacent the two-dimensional image on the display.

10. The display of claim 6 wherein the two-dimensional image is positioned in the generic representation.

11. The display of claim 1 further comprising at least one displayed numerical value responsive to at least one of the orientation of the image and a position of the region within the body.

12. The display of claim 1 wherein the orientation of the image is adjustable.

13. The display of claim 1 wherein the image is responsive to stored ultrasound data and the orientation of the image are independent of previous displays generated as a function of the ultrasound data.

14. A medical diagnostic ultrasound system for displaying a two-dimensional image, the system comprising:

an ultrasound transducer for scanning a two-dimensional region;

a display operable to display an ultrasound two-dimensional image representing the two-dimensional region, the two-dimensional image having a portion corresponding to a position of the transducer relative to the two-dimensional image;

a controller operative to orient the two-dimensional image as a function of an orientation of the transducer, the portion being at a position rotated away from vertical, the rotation of the position being independent of a user selected reference point on a transducer-up or down image.

15. The system of claim 14 further comprising a user input device, wherein the controller is operable to receive user input of the orientation of the transducer from the user input device.

16. The system of claim 14 further comprising:

a position sensor operative to sense an orientation of the transducer;

wherein the controller is operable to receive the orientation of the transducer from the position sensor.

17. The system of claim 16 wherein the position sensor comprises a magnetic position sensor connected with the transducer.

18. The system of claim 14 wherein the display is substantially free of three-dimensional representations rendered as a function of a scan of the body.

19. The system of claim 14 wherein the display is further operable to display a generic representation indicative of a position of the body.

20. The system of claim 19 wherein the generic representation comprises a three-dimensional compass graphic.

21. The system of claim 19 wherein the generic representation comprises a generic representation of at least a portion of the body.

22. The system of claim 19 wherein a polygon is positioned in the generic representation, the polygon comprises a same shape as the two-dimensional image, and the generic representation is adjacent the two-dimensional image on the display.

23. The system of claim 19 wherein the two-dimensional image is positioned in the generic representation.

24. The system of claim 14 wherein the controller and display comprise a remote workstation wherein the orientation of the two-dimensional image is response to input at the remote workstation.

25. The system of claim 14 further comprising a memory wherein the two-dimensional image is responsive to ultrasound data stored in the memory and the orientation of the image is independent of previous displays generated as a function of the ultrasound data.

26. A medical diagnostic ultrasound method for displaying a two-dimensional image, the method comprising the acts of:

(a) generating a two-dimensional ultrasound image;

(b) orienting the two-dimensional ultrasound image such that the image appears rotated from a transducer-up or down position as a function of a border of the image, the rotation independent of previous image data.

27. The method of claim 26 wherein (b) comprises positioning the image such that a center of an edge corresponding to a position adjacent to the transducer is oriented at an angle of rotation away from vertical on a display.

28. The method of claim 26 further comprising:

(c) displaying the two-dimensional ultrasound image on a display, the display being substantially free of three-dimensional representations rendered as a function of a scan of the body.

29. The method of claim 26 further comprising:

(c) inputting from the user the rotation of the image.

30. The method of claim 26 further comprising:

(c) determining the rotation of the image as a function of a transducer position sensor.

31. The method of claim 26 further comprising:

(c) generating a generic representation indicative of a position of the body.

32. The method of claim 31 wherein (c) comprises generating a three-dimensional compass graphic.

33. The method of claim 31 wherein (c) comprises generating a generic representation of at least a portion of the body.

34. The method of claim 31 further comprising:

(d) generating a polygon positioned in the generic representation, the polygon comprising a same shape as the two-dimensional image.

35. The method of claim 31 wherein the two-dimensional image is positioned in the generic representation.

36. The method of claim 26 further comprising:

(c) transferring ultrasound data to a remote workstation;

wherein the image is generated as a function of the ultrasound data and the orientation is independent of any previous displays generated as a function of the ultrasound data.

37. A medical diagnostic ultrasound system for displaying a two-dimensional image, the system comprising:

an ultrasound transducer probe adapted for use external to a patient to scan a two-dimensional region of the patient;

a display operable to display an ultrasound two-dimensional image representing the two-dimensional region wherein the display is free of three-dimensional representations rendered as a function of a scan of the patient; and

a controller operative to orient the two-dimensional image as a function of an angle of the transducer probe to the patient, the orientation being independent of a user selected reference point in a previous image.

38. The system of claim 37 further comprising:

a user control wherein the orientation is responsive to user input of the angle.

39. The system of claim 37 further comprising:

a position sensor on the transducer probe wherein the orientation of the image is responsive to the position sensor.

40. The system of claim 37 wherein the controller is operative to orient the two-dimensional image such that a line on the image that is orthogonal to a face of the transducer is closer to a horizontal position than a vertical position.

41. A medical diagnostic ultrasound method for imaging a region of a body, the method comprising the acts of:

(a) ultrasonically scanning a region of interest in the body;

(b) monitoring an orientation of the region with respect to anatomical features of the body;

(c) displaying an ultrasound two-dimensional image responsive to the scan and a generic representation of at least a portion of the body wherein the image is geometrically aligned with the generic representation.

42. The method of claim 41 wherein (c) comprises rendering the two-dimensional image to align with a statically positioned generic representation.

43. The method of claim 42 wherein (c) comprises orienting the two-dimensional image such that a direction orthogonal to a center of a face of a transducer is oriented at an angle of rotation away from vertical.

44. The method of claim 41 wherein (c) comprises rendering the generic representation to align with a statically positioned two-dimensional image.

45. The method of claim 44 wherein (c) comprises orienting the statically positioned two-dimensional image in a transducer on top or bottom position.

46. The method of claim 41 further comprising:

(d) rendering a wire frame representation.

47. The method of claim 41 wherein (b) comprises monitoring a transducer probe orientation with a position sensor.

48. The method of claim 47 wherein (b) comprises monitoring with a magnetic position sensor.

49. The method of claim 41 wherein (b) comprises monitoring as a function of ultrasound data responsive to the scan.

50. The method of claim 41 wherein (b) comprises monitoring as a function of a user input estimation.

51. The method of claim 41 wherein (a) comprises scanning with a transducer array internal to the body.

52. The method of claim 51 wherein (a) comprises scanning with a transducer array mounted within a catheter.

53. The method of claim 41 wherein the at least a portion of the body is selected from the group consisting of:

an organ, a portion of an organ, the heart, a portion of the heart, a portion of the torso and the torso.

54. A medical diagnostic ultrasound system for imaging a region of a body, the system comprising:

an ultrasound transducer for scanning a region of interest in a body;

a device operable to monitor an orientation of the region with respect to anatomical features of the body;

a display operable to display an ultrasound two-dimensional image responsive to information from the transducer and a generic representation of at least a portion of the body wherein the two-dimensional image is geometrically aligned with the generic representation.

55. The system of claim 54 further comprising a processor operable to render the two-dimensional image to align with a statically positioned generic representation on the display.

56. The system of claim 54 wherein the two-dimensional image is oriented such that a center of the edge corresponding to a position adjacent to the transducer is at an angle of rotation away from vertical.

57. The system of claim 54 further comprising a processor operable to render the generic representation to align with a statically positioned two-dimensional image on the display.

58. The system of claim 57 wherein the statically positioned two-dimensional image is oriented in a transducer on top or bottom position.

59. The system of claim 54 further comprising a processor operable to render a wire frame representation.

60. The system of claim 54 wherein the device comprises a position sensor.

61. The system of claim 60 wherein the device comprises a magnetic position sensor.

62. The system of claim 54 wherein the device comprises a processor operable to monitor as a function of ultrasound data responsive to the scan.

63. The system of claim 54 wherein the device comprises a user input device.

64. The system of claim 54 wherein the transducer comprises a transducer array adapted for use internal to the body.

65. The system of claim 64 wherein the transducer comprises a transducer array mounted within a catheter.

66. The system of claim 54 wherein the at least a portion of the body is selected from the group consisting of an organ, a portion of an organ, the heart, a portion o f the heart, a portion of the torso and the torso.

67. A medical diagnostic ultrasound two-dimensional image representing a two-dimensional region with in a body and comprising an edge having at least one point corresponding to a position substantially adjacent to a transducer, an improvement of the display comprising:

the image being oriented such that a direction orthogonal to a center of a face of the transducer is at an angle of rotation away from vertical on a display wherein the angle is responsive to a user selection of the angle.

68. The display of claim 67 wherein the orientation of the image is adjustable.

69. The display of claim 67 wherein the image is responsive to stored ultrasound data and the orientation of the image are independent of previous displays generated as a function of the ultrasound data.

70. The display of claim 67 wherein the transducer is adapted for insertion into a patient.

71. A medical diagnostic ultrasound system for displaying a two-dimensional image, the system comprising:

an ultrasound transducer for scanning a two-dimensional region;

a display operable to display an ultrasound two-dimensional image representing the two-dimensional region, the two-dimensional image having a portion corresponding to a position of the transducer relative to the two-dimensional image;

a controller operative to orient the two-dimensional image as a function of an orientation of the transducer, the portion being at a position rotated away from vertical; and

a user input device;

wherein the controller is operable to receive user input of the orientation of the transducer from the user input device.

72. The system of claim 71 wherein the controller and display comprise a remote workstation wherein the orientation of the two-dimensional image is responsive to input at the remote workstation.

73. The system of claim 71 further comprising a memory wherein the two-dimensional image is responsive to ultrasound data stored in the memory and the orientation of the image is independent of previous displays generated as a function of the ultrasound data.

74. The system of claim 71 wherein the ultrasound transducer is adapted for insertion into a patient.

75. A medical diagnostic ultrasound two-dimensional image representing a two-dimensional region within a body and comprising an edge having at least one point corresponding to a position substantially adjacent to a transducer, an improvement of the display comprising:

the image being oriented such that a direction orthogonal to a center of a face of the transducer is at an angle of rotation away from vertical on a display;

wherein the image is responsive to stored ultrasound data and the orientation of the image are independent of previous displays generated as a function of the ultrasound data.

76. The display of claim 75 wherein the angle is responsive to a user selection.

77. The display of claim 75 wherein the transducer is adapted for insertion into the body.

78. A medical diagnostic ultrasound system for displaying a two-dimensional image, the system comprising:

an ultrasound transducer for scanning a two-dimensional region;

a display operable to display an ultrasound two-dimensional image representing the two-dimensional region, the two-dimensional image having a portion corresponding to a position of the transducer relative to the two-dimensional image;

a controller operative to orient the two-dimensional image as a function of an orientation of the transducer, the portion being at a position rotated away from vertical; and

a memory wherein the two-dimensional image is responsive to ultrasound data stored in the memory and the orientation of the image is independent of previous displays generated as a function of the ultrasound data.

79. The system of claim 78 further comprising a user input device, wherein the controller is operable to receive user input of the orientation of the transducer from the user input device.

80. The system of claim 78 wherein the transducer is adapted for insertion into the body.

81. A medical diagnostic ultrasound two-dimensional image representing a two-dimensional region within a body and comprising an edge having at least one point corresponding to a position substantially adjacent to a transducer, an improvement of the display comprising:

the image being oriented such that a direction orthogonal to a center of a face of the transducer is at an angle of rotation away from vertical on a display;

wherein the transducer is adapted for insertion into a patient.

82. The display of claim 81 wherein the angle is responsive to a user selection.

83. The display of claim 81 wherein the image is responsive to stored ultrasound data and the orientation of the image are independent of previous displays generated as a function of the ultrasound data.

84. A medical diagnostic ultrasound system for displaying a two-dimensional image, the system comprising:

an ultrasound transducer adapted for insertion into a patient for scanning a two-dimensional region;

a display operable to display an ultrasound two-dimensional image representing the two-dimensional region, the two-dimensional image having a portion corresponding to a position of the transducer relative to the two-dimensional image; and

a controller operative to orient the two-dimensional image as a function of an orientation of the transducer, the portion being at a position rotated away from vertical.

85. The system of claim 84 further comprising a user input device, wherein the controller is operable to receive user input of the orientation of the transducer from the user input device.

86. The system of claim 84 wherein the controller and display comprise a remote workstation wherein the orientation of the two-dimensional image is response to input at the remote workstation.

87. The system of claim 84 further comprising a memory wherein the two-dimensional image is responsive to ultrasound data stored in the memory and the orientation of the image is independent of previous displays generated as a function of the ultrasound data.

88. The system of claim 84 further comprising a position sensor connected with the ultrasound transducer.

89. A medical diagnostic ultrasound method for displaying a two-dimensional image, the method comprising the acts of:

(a) inserting an ultrasound transducer in a catheter into a target;

(b) generating a two-dimensional ultrasound image responsive to information from the ultrasound transducer, the two-dimensional ultrasound image being rectangular or pie shaped;

(c) orienting the two-dimensional ultrasound image such that a direction orthogonal to a center of a face of the transducer is at an angle of rotation away from vertical on the display; and

(d) determining the angle as a function of information from a position sensor connected with the catheter.