Image display apparatus and X-ray diagnostic apparatus

• US 8,934,604 B2
• Filed: 09/25/2008
• Issued: 01/13/2015
• 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
• Primary Examiner(s): Artman, Thomas R
• Application Number:
  US12/237,675
• Publication Number:
  US 20090086912A1
• Time in Patent Office: 2,301 Days
• Field of Search: 382/132, 378/4, 378/62, 378/98.8
• US Class Current: 378/62
• 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;

an extraction unit which extracts a tubular object region from the volume data;

a cross-sectional image creation unit which creates a plurality of cross-sectional images perpendicular to a center line of the extracted tubular object region;

a projected image creation unit which creates a projected image;

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

a specification unit which specifies a respective arbitrary point on each of the plurality of cross-sectional images displayed on the display; and

a controller which, according to the arbitrary points specified by the specification unit, superimposes at least two curved lines, including a planned wire line and a center line of the tubular object region, on the projected image on the display, wherein when a blood vessel center line and a planned wire line overlap with each other, the controller is configured to cause the blood vessel center line and the planned wire line to be displayed in such a manner that the blood vessel center line or the planned wire line closer to a viewpoint appears above the blood vessel center line or the planned wire that is farther from the viewpoint.

2. The image display apparatus according to claim 1, wherein the projected image creation unit creates a projected image from the volume data acquired by the volume data acquisition unit.

3. The image display apparatus according to claim 1, wherein the projected image creation unit creates a projected image from X-ray projected data.

4. The image display apparatus according to claim 1, wherein the controller displays a line existing closer to the view point above the other lines on the projected image displayed on the display.

5. The image display apparatus according to claim 1, wherein the controller displays the lines in different colors, different types, or different thicknesses on the projected image displayed on the display.

6. An image display apparatus, comprising:

a volume data acquisition unit which acquires volume data;

an extraction unit which extracts a tubular object region from the volume data;

a cross-sectional image creation unit which creates a plurality of cross-sectional images perpendicular to a center line of the extracted tubular object region;

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

a display 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; and

a controller which, according to the specific point specified by the specification unit, displays a line on one of the cross-sectional images displayed on the display, the line being a projected line connecting the specific point and a position of an X-ray source.

7. The image display apparatus according to claim 6, wherein the projected image creation unit creates the projected image from the volume data acquired by the volume data acquisition unit.

8. The image display apparatus according to claim 6, wherein the projected image creation unit creates the projected image from X-ray projected data.

9. The image display apparatus according to claim 6, wherein the controller displays at least two arbitrary points on the one of the cross-sectional images displayed on the display.

10. The image display apparatus according to claim 9, wherein the controller displays the at least two arbitrary points in different colors, different types, or different sizes on the one of the cross-sectional images displayed on the display.

11. An image display apparatus, comprising:

a volume data acquisition unit which acquires volume data;

an extraction unit which extracts a tubular object region from the volume data;

a cross-sectional image creation unit which creates a cross-sectional image perpendicular to a center line of the extracted tubular object region;

a computing unit which calculates a projected line in a radiation direction on the cross-sectional image created by the cross-sectional image creation unit and calculates a portion of the projected line that intersects the cross-sectional image;

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

a display which displays the cross-sectional image and the projected image,

wherein the display displays the portion of the projected line that intersects the cross-sectional image on the cross-sectional image.

12. The image display apparatus according to claim 11, wherein the display displays radiant lines on the cross-sectional image.

13. The image display apparatus according to claim 11, further comprising a specification unit which specifies a specific point on the cross-sectional image displayed on the display,

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