Method for visualization of plaque deposits from 3D image data records of vessel structures

• US 20060171585A1
• Filed: 09/08/2005
• Published: 08/03/2006
• Est. Priority Date: 09/09/2004
• Status: Active Grant

• Current Assignee: Siemens Healthineers AG (Siemens AG)
• Original Assignee: Siemens AG
• Inventors: Rinck, Daniel, Scheuering, Michael
• Granted Patent: US 7,920,734 B2
• Time in Patent Office: Days
• US Class Current: 382/173
• CPC Class Codes: A61B 6/481 involving the use of contrast agents
• CPC Class Codes: A61B 6/504 for diagnosis of blood vessels, e.g. by angiography
• CPC Class Codes: G06T 19/00 Manipulating 3D models or images for computer graphics
• CPC Class Codes: G06T 2207/10081 Computed x-ray tomography [CT]
• CPC Class Codes: G06T 2207/20044 Skeletonization; Medial axis transform
• CPC Class Codes: G06T 2207/30101 Blood vessel; Artery; Vein; Vascular
• CPC Class Codes: G06T 2210/41 Medical
• CPC Class Codes: G06T 7/0012 Biomedical image inspection
• CPC Class Codes: G06T 7/12 Edge-based segmentation

Abstract

A method is disclosed for visualization of plaque deposits from 3D image data records of vessel structures, in particular of the coronary vascular system, in which at least one predeterminable section of the vessel structure with the plaque deposits is segmented in the 3D image data record in order to obtain segmented 3D image data. A synthetic 3D model image of the at least one section of the vessel structure and of the plaque deposits is produced from the segmented image data, and includes only boundary surfaces of the vessel structure and of the plaque deposits. The synthetic 3D model image is produced by three-dimensional interpolation between pixels which are associated with boundary surfaces of the vessel structure, and between pixels which are associated with boundary surfaces of the plaque deposits in order to obtain a uniform grid at pixels for the 3D model image. Finally, the synthetic 3D model image or a partial volume of it is visualized. The method allows a vessel section with plaque deposits to be visualized better for evaluation.

Claims

1. A method for visualization of plaque deposits from 3D image data records of vessel structures in which at least one section of the vessel structure with the plaque deposits is segmented in the 3D image data record in order to obtain segmented image data, the method comprising:

producing a synthetic 3D model image of the at least one section of the vessel structure and of the plaque deposits from the segmented image data, the synthetic 3D model image including only boundary surfaces of the vessel structure and of the plaque deposits, the synthetic 3D model image being produced by three-dimensional interpolation between pixels associated with boundary surfaces of the vessel structure, and between pixels associated with boundary surfaces of the plaque deposits in order to obtain a uniform grid at pixels for the 3D model image, wherein at least a partial image of the synthetic 3D model image is visualized.

2. The method as claimed in claim 1, wherein the segmentation is carried out by:

determining a profile of a central axis of the at least one section of the vessel structure,

calculating axial slices along the central axis, and

determining boundary lines of the at least one section of the vessel structure and of the plaque deposits from image data from the axial slices.

3. The method as claimed in claim 1, wherein the synthetic 3D model image is produced and visualized as a polygonal network.

4. The method as claimed in claim 1, wherein at least one of the viewing perspective and virtual movement is changeable by the at least one section of the vessel structure in real time.

5. The method as claimed in claim 1, wherein the method is for visualization of plaque deposits from 3D image data records of vessel structures of the coronary vascular system.

6. The method as claimed in claim 2, wherein the synthetic 3D model image is produced and visualized as a polygonal network.

7. The method as claimed in claim 2, wherein at least one of the viewing perspective and virtual movement is changeable by the at least one section of the vessel structure in real time.

8. The method as claimed in claim 3, wherein at least one of the viewing perspective and virtual movement is changeable by the at least one section of the vessel structure in real time.

9. The method as claimed in claim 6, wherein at least one of the viewing perspective and virtual movement is changeable by the at least one section of the vessel structure in real time.

10. A method for visualization of plaque deposits from 3D image data records of vessel structures in which at least one section of the vessel structure, comprising:

segmenting the plaque deposits in the 3D image data record to obtain segmented image data; and

producing a synthetic 3D model image of the at least one section of the vessel structure and of the plaque deposits from the segmented image data, the synthetic 3D model image including only boundary surfaces of the vessel structure and of the plaque deposits, the synthetic 3D model image being produced by three-dimensional interpolation between pixels associated with boundary surfaces of the vessel structure and between pixels associated with boundary surfaces of the plaque deposits, to obtain a uniform grid at pixels for the 3D model image.

11. The method as claimed in claim 10, wherein the segmentation is carried out by:

determining a profile of a central axis of the at least one section of the vessel structure,

calculating axial slices along the central axis, and

determining boundary lines of the at least one section of the vessel structure and of the plaque deposits from image data from the axial slices.

12. The method as claimed in claim 10, wherein the synthetic 3D model image is produced and visualized as a polygonal network.

13. The method as claimed in claim 10, wherein at least one of the viewing perspective and virtual movement is changeable by the at least one section of the vessel structure in real time.

14. The method as claimed in claim 10, wherein the method is for visualization of plaque deposits from 3D image data records of vessel structures of the coronary vascular system.

15. The method as claimed in claim 11, wherein the synthetic 3D model image is produced and visualized as a polygonal network.

16. The method as claimed in claim 11, wherein at least one of the viewing perspective and virtual movement is changeable by the at least one section of the vessel structure in real time.

17. The method as claimed in claim 12, wherein at least one of the viewing perspective and virtual movement is changeable by the at least one section of the vessel structure in real time.

18. The method as claimed in claim 15, wherein at least one of the viewing perspective and virtual movement is changeable by the at least one section of the vessel structure in real time.

19. The method as claimed in claim 10, wherein at least a partial image of the synthetic 3D model image is visualized.

20. The method as claimed in claim 10, further comprising:

visualizing at least a partial image of the synthetic 3D model image.