Image fusion method and system for CT coronary image and XA angiography image

An image fusion and CT image technology, applied in the field of medical device data image processing, can solve problems such as manual completion, inability to simulate DSA catheter inspection images with CT equipment, and inability to simulate the posture and shape of the catheter head.

Inactive Publication Date: 2014-07-09
CREALIFE MEDICAL TECH BEIJING
View PDF2 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2D-3D registration is a complex space transformation process. It is difficult for doctors to complete this process manually. It is impossible to simulate the posture and shape of the catheter head, and it is impossible to realize CT equipment to simulate DSA catheter inspection images and realize CT image

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image fusion method and system for CT coronary image and XA angiography image
  • Image fusion method and system for CT coronary image and XA angiography image
  • Image fusion method and system for CT coronary image and XA angiography image

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] The technical scheme of the present invention will be described in detail below in conjunction with the examples of the present invention

[0072] 1. XA image blood vessel extraction

[0073] Select a frame of image in the XA image, and record the main angle and sub-angle information in the DICOM information of the image, as well as the position information of the transmitting source and receiving board. Using multi-scale Hessian convolution pairs figure 1 Perform enhancement, and count the optimal enhancement effect at all scales. The calculation formula at each scale is

[0074] V ( s ) = 0 if λ 2 > 0 , exp ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an image fusion method and system for a CT coronary image and an XA angiography image. The method comprises extracting a blood vessel image of an XA image, and conducting diffusion processing of the blood vessel image to obtain an XA diffusion image; extracting a CT coronary image, conducting two-dimensional projection of the CT coronary image to obtain a two-dimensional CT image, and then conducting expansion processing of the two-dimensional CT image to obtain a CT expansion image; taking the XA diffusion image as a reference image and the two-dimensional CT projection expansion image as a floating image, according to a similarity measure function, conducting XA image simulation processing of the CT coronary image to obtain a CT-XA simulation XA image; and then loading a registered CT simulation XA image onto the XA image for fusion display. According to the invention, the CT simulation XA image and the CT-XA fusion image can be obtained, and a reference position and direction are provided for undeveloped blood vessels on the XA angiography image.

Description

technical field [0001] The invention relates to medical device data image processing, in particular to a method and system for fusing CT coronary images and XA contrast images. Background technique [0002] Using CT (Computer X-ray tomography technique, computer X-ray tomography technology) to perform enhanced scans on the heart, a complete CT image of the heart at a certain phase can be obtained. XA (X-ray angiography, X angiography), the degree of development is much better. As far as the current technology is concerned, the cardiovascular (hereinafter referred to as coronary artery) can be completely extracted from the heart image of CT enhanced scan. The same vessel with occlusion is very difficult to be visualized by XA angiography, but it can be visualized relatively easily by enhanced CT scan and extracted by technical means. In this way, the XA image can be approximated by performing projection transformation on the three-dimensional coronary image (Martin Groher. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06T5/50
Inventor 王民汉周宇李晓光
Owner CREALIFE MEDICAL TECH BEIJING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap