Image Support

• US 20140294149A1
• Filed: 03/27/2014
• Published: 10/02/2014
• Est. Priority Date: 03/27/2013
• Status: Abandoned Application

• Current Assignee: Siemens AG
• Original Assignee: Markus Rossmeier
• Inventors: Romeier, Markus, Rieber, Johannes
• Application Number:
  US14/227,832
• Publication Number:
  US 20140294149A1
• Time in Patent Office: Days
• US Class Current: 378/62
• CPC Class Codes: G06T 2207/10116 X-ray image
• CPC Class Codes: G06T 2207/20221 Image fusion; Image merging
• CPC Class Codes: G06T 2207/30021 Catheter; Guide wire
• CPC Class Codes: G06T 2207/30101 Blood vessel; Artery; Vein; Vascular
• CPC Class Codes: G06T 7/0012 Biomedical image inspection
• CPC Class Codes: G06T 7/70 Determining position or orientation of objects or cameras camera calibration G06T7/80

Abstract

A method includes x-ray image recording of a sequence of overview images of a guidewire during movement of the guidewire through an occlusion, and continuously updated determining of the position of the guidewire using an image recognition algorithm from the overview images. The method also includes continuously updated determining of the position of a tip of the guidewire using a further image recognition algorithm from the overview images, and determining a sequence of zoom images from the sequence of overview images. The zoom images, based on the position determination of the tip of the guidewire, show a cutout with the tip that is enlarged from the overview x-ray images. The method also includes automatic real-time display of at least one overview image with a displayed guidewire in each instance together with at least one zoom image with a displayed tip of the guidewire on a display unit.

Claims

1. A method for image support during a movement of a guidewire through an occlusion of a hollow organ of a patient, the method comprising:

x-ray image recording a sequence of overview images of the guidewire during the movement of the guidewire through the occlusion;

continuously updated determining a position of the guidewire using an image recognition algorithm from the overview images;

continuously updated determining of a position of a tip of the guidewire using a further image recognition algorithm from the overview images;

determining a sequence of zoom images from the sequence of overview images, the zoom images, based on the position determination of the tip of the guidewire, showing a section with the tip of the guidewire that is enlarged from the overview x-ray images; and

automatic real-time displaying of at least one overview image with a displayed guidewire together with at least one zoom image with a displayed tip of the guidewire on a display unit.

2. The method of claim 1, wherein a zoom image is assigned to each overview image respectively and is displayed at the same time.

3. The method of claim 1, wherein a zoom image is displayed as a picture-in-picture in an overview image in each instance.

4. The method of claim 1, wherein a zoom image and an overview image are displayed adjacent to one another.

5. The method of claim 1, wherein the zoom images have an enlargement of at least a factor four compared with the overview images.

6. The method of claim 1, wherein tracking algorithms are used in order to determine the positions of the guidewire, the tip of the guidewire, or the guidewire and the tip of the guidewire.

7. The method of claim 2, wherein a zoom image is displayed as a picture-in-picture in an overview image in each instance.

8. The method of claim 2, wherein a zoom image and an overview image are displayed adjacent to one another.

9. The method of claim 3, wherein a zoom image and an overview image are displayed adjacent to one another.

10. The method of claim 2, wherein the zoom images have an enlargement of at least a factor four compared with the overview images.

11. The method of claim 3, wherein the zoom images have an enlargement of at least a factor four compared with the overview images.

12. The method of claim 4, wherein the zoom images have an enlargement of at least a factor four compared with the overview images.

13. The method of claim 2, wherein tracking algorithms are used in order to determine the positions of the guidewire, the tip of the guidewire, or the guidewire and the tip of the guidewire.

14. The method of claim 3, wherein tracking algorithms are used in order to determine the positions of the guidewire, the tip of the guidewire, or the guidewire and the tip of the guidewire.

15. The method of claim 4, wherein tracking algorithms are used in order to determine the positions of the guidewire, the tip of the guidewire, or the guidewire and the tip of the guidewire.

16. The method of claim 5, wherein tracking algorithms are used in order to determine the positions of the guidewire, the tip of the guidewire, or the guidewire and the tip of the guidewire.

17. An x-ray device configured for image support during a movement of a guidewire through an occlusion of a hollow organ of a patient, the x-ray device comprising:

a recording system having an x-ray source and an x-ray detector operable to record a sequence of overview images of the guidewire during the movement of the guidewire through the occlusion;

a control unit configured to actuate the image support;

an image system comprising an image processing unit, the image processing unit configured to;

process the overview images;

determine, in a continuously updated manner, a position of the guidewire using an image recognition algorithm from the overview images;

determine, in a continuously updated manner, a position of a tip of the guidewire using a further image recognition algorithm from the overview images; and

determine a sequence of zoom images from the sequence of overview images, the zoom images, based on the position determination of the tip of the guidewire, showing a section with the tip of the guidewire that is enlarged from the overview x-ray images; and

a display unit configured for the shared real-time display of the overview images and the zoom images.