IMAGE DISPLAY APPARATUS AND X-RAY DIAGNOSTIC APPARATUS

• US 20090086912A1
• Filed: 09/25/2008
• Published: 04/02/2009
• Est. Priority Date: 09/28/2007
• Status: Active Grant

• Current Assignee: Toshiba Medical Systems Corporation (Canon Inc.)
• Original Assignee: Toshiba Medical Systems Corporation (Canon Inc.), Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: SAKAGUCHI, Takuya
• Granted Patent: US 8,934,604 B2
• Time in Patent Office: Days
• US Class Current: 378/98.500
• CPC Class Codes: A61B 5/02007 Evaluating blood vessel condition, e.g. elasticity, compliance
• CPC Class Codes: A61B 6/032 Transmission computed tomography [CT]
• CPC Class Codes: A61B 6/4441 the rigid structure being a C-arm or U-arm
• CPC Class Codes: A61B 6/461 Displaying means of special interest
• CPC Class Codes: A61B 6/5211 involving processing of medical diagnostic data

Abstract

In an image display apparatus of this invention, an image creation unit creates a plurality of cross-sectional images and a projected image from the volume data acquired at a CT volume data acquisition unit. The plurality of cross-sectional images and projected image are displayed on a monitor. When a specific point on the plurality of cross-sectional images displayed on the monitor is clicked at an operation unit, a line is displayed on the projected image displayed on the monitor according to the click.

Claims

1. An image display apparatus comprising:

a volume data acquisition unit which acquires volume data;

a cross-sectional image creation unit which creates a cross-sectional images from the volume data acquired by the volume data acquisition unit;

a projected image creation unit which creates a projected image;

a display unit which displays said cross-sectional images and the projected image;

a specification unit which specifies a specific point on the cross-sectional images displayed on the display unit; and

a control unit which, according to the specific point specified by the specification unit, displays a point on the projected image displayed on the display unit.

2. The image display apparatus according to claim 1, wherein the control unit displays at least an arbitrary line and a point on the projected image displayed on the display unit.

3. An image display apparatus comprising:

a volume data acquisition unit which acquires volume data;

a cross-sectional image creation unit which creates a plurality of cross-sectional images from the volume data acquired by the volume data acquisition unit;

a projected image creation unit which creates a projected image;

a display unit which displays said plurality of cross-sectional images and the projected image;

a specification unit which specifies specific points on said plurality of cross-sectional images displayed on the display unit; and

a control unit which, according to the specific points specified by the specification unit, displays a line on the projected image displayed on the display unit.

4. The image display apparatus according to claim 3, wherein the projected image creation unit creates a projected image from the volume data acquired by the volume data acquisition unit.

5. The image display apparatus according to claim 3, wherein the projected image creation unit creates a projected image from X-ray projected data.

6. The image display apparatus according to claim 3, wherein the control unit displays at least two arbitrary lines on the projected image displayed on the display unit.

7. The image display apparatus according to claim 6, wherein the control unit displays a line existing closer to the view point above the other lines on the projected image displayed on the display unit.

8. The image display apparatus according to claim 6, wherein the control unit displays the lines in different colors, different types, or different thicknesses on the projected image displayed on the display unit.

9. An image display apparatus comprising:

a volume data acquisition unit which acquires volume data;

a cross-sectional image creation unit which creates a plurality of cross-sectional images from the volume data acquired by the volume data acquisition unit;

a projected image creation unit which creates a projected image;

a display unit which displays said plurality of cross-sectional images and the projected image;

a specification unit which specifies a specific point on the projected image displayed on the display unit; and

a control unit which, according to the specific point specified by the specification unit, displays a line on the cross-sectional image displayed on the display unit.

10. The image display apparatus according to claim 9, wherein the projected image creation unit creates a projected image from the volume data acquired by the volume data acquisition unit.

11. The image display apparatus according to claim 9, wherein the projected image creation unit creates a projected image from X-ray projected data.

12. The image display apparatus according to claim 9, wherein the control unit displays at least two arbitrary points on the cross-sectional image displayed on the display unit.

13. The image display apparatus according to claim 12, wherein the control unit displays the lines in different colors, different types, or different sizes on the cross-sectional image displayed on the display unit.

14. An image display apparatus comprising:

a volume data acquisition unit which acquires volume data;

a cross-sectional image creation unit which creates a cross-sectional image from the volume data acquired by the volume data acquisition unit; and

a computing unit which calculates a projected direction in a radiation direction on the cross-sectional image created by the cross-sectional image creation unit.

15. The image display apparatus according to claim 14, further comprising:

a projected image creation unit which creates a projected image from the volume data acquired by the volume data acquisition unit; and

a display unit which displays the cross-sectional image and projected image.

16. The image display apparatus according to claim 15, wherein the display unit displays a projected direction calculated at the computing unit.

17. The image display apparatus according to claim 14, wherein the display unit displays radiant lines on the cross-sectional image.

18. The image display apparatus according to claim 14, further comprising a specification unit which specifies a specific point on the cross-sectional image displayed on the display unit,

wherein the display unit displays a projected image viewed from the specific point specified by the specification unit.

19. An X-ray diagnostic apparatus which has an X-ray source and an X-ray detector positioned by a supporter so as to face each other with a subject sandwiched between them and which performs the image processing of image data obtained by detecting X-rays shed on the subject by the X-ray source and converting the X-rays into an electrical signal and displays an image, the X-ray diagnostic apparatus comprising:

a volume data acquisition unit which acquires volume data;

a cross-sectional image creation unit which creates a cross-sectional image from the volume data acquired by the volume data acquisition unit;

a computing unit which calculates a projected direction in a radiation direction on the cross-sectional image created by the cross-sectional image creation unit;

a projected image creation unit which creates a projected image from the volume data acquired by the volume data acquisition unit;

a display unit which displays the cross-sectional image and the projected image;

a specification unit which specifies a specific point on the cross-sectional image displayed on the display unit; and

a supporter control unit which rotates the supporter,

wherein the computing unit, when a specific point is specified at the specification unit, calculates a destination position of the supporter so that the X-ray source is positioned in the direction of the specified specific point, and

the supporter control unit rotates the supporter in such a manner that the X-ray source is positioned in the destination position calculated by the computing unit.

20. The X-ray diagnostic apparatus according to claim 19, wherein the display unit displays the projected direction calculated at the computing unit.

21. The X-ray diagnostic apparatus according to claim 19 or 20, wherein the display unit displays a destination position of the supporter calculated at the computing unit in a different color, depending on whether the position is inside or outside a rotatable range of the supporter.

22. An image display apparatus comprising:

a volume data acquisition unit which acquires volume data;

a cross-sectional image creation unit which creates a cross-sectional image from the volume data acquired by the volume data acquisition unit;

a projected image creation unit which creates a projected image from the volume data acquired by the volume data acquisition unit;

a display unit which displays the cross-sectional image and the projected image;

an image rotation unit which rotates the projected image in a desired direction; and

a computing unit which calculates a projected direction of the rotated projected image,

wherein the display unit displays the projected direction calculated at the computing unit on the cross-sectional image.

23. The image display apparatus according to claim 22, wherein the display unit, when the projected image is rotated, corrects the projected direction displayed on the cross-sectional image according to the rotation.

24. The image display apparatus according to claim 22, wherein the display unit represents the projected direction displayed on the cross-sectional image in a line or an arrow.

25. An X-ray diagnostic apparatus which has an X-ray source and an X-ray detector positioned by a supporter so as to face each other with a subject sandwiched between them and which performs the image processing of image data obtained by detecting X-rays shed on the subject by the X-ray source and converting the X-rays into an electrical signal and displays an image, the X-ray diagnostic apparatus comprising:

a volume data acquisition unit which acquires volume data;

a cross-sectional image creation unit which creates a cross-sectional image from the volume data acquired by the volume data acquisition unit;

a projected image creation unit which creates a projected image from the volume data acquired by the volume data acquisition unit;

a display unit which displays the cross-sectional image and the projected image;

an image rotation unit which rotates the projected image in a desired direction; and

a computing unit which calculates a projected direction of the rotated projected image,

wherein the display unit displays the projected direction calculated at the computing unit on the cross-sectional image.

26. The X-ray diagnostic apparatus according to claim 25, wherein the display unit, when the projected image is rotated, corrects the projected direction displayed on the cross-sectional image according to the rotation.

27. The X-ray diagnostic apparatus according to claim 26, wherein the display unit represents the projected direction displayed on the cross-sectional image in a line or an arrow.