Systems and methods for registration of angiographic projections with computed tomographic data

A technique for angiography and tomography, which is applied in the field of medical imaging and can solve problems such as low resolution

Pending Publication Date: 2021-09-10
GE PRECISION HEALTHCARE LLC
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, images obtained from CT angiography may have lower resolution under certain circumstances, such as when the patient has stenosis or a high heart rate

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
  • Systems and methods for registration of angiographic projections with computed tomographic data
  • Systems and methods for registration of angiographic projections with computed tomographic data
  • Systems and methods for registration of angiographic projections with computed tomographic data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The following description relates to various embodiments of a medical imaging system and method for automatically registering two-dimensional (2D) angiographic projections to three-dimensional (3D) computed tomography (CT) imaging data thereon. One such medical imaging system configured to acquire 2D angiographic projections and 3D CT imaging data is depicted in figure 1 and figure 2 , and one such method for automatic registration of 2D angiographic projections to 3D CT imaging data is presented in Figure 3A and Figure 3B , from which the fractional flow reserve (FFR) of the coronary artery of interest can be determined. In one embodiment, a reduced-order model (such as Figure 4 An exemplary reduced-order model of ) to estimate FFR. Figure 5 Depicted is an exemplary user interface display of a display device of a medical imaging system in which reconstructed images based on 2D angiographic projections registered to 3D CT imaging data, FFR of a coronary artery ...

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

Systems and methods are provided for imaging coronary trees via registration of angiographic projections with computed tomographic data. In one example, a method for imaging a coronary artery of interest in a patient may include acquiring computed tomography (CT) imaging data depicting a coronary tree, acquiring a single angiographic projection of the coronary artery of interest, registering the single angiographic projection to the CT imaging data, and determining a fractional flow reserve (FFR) of the coronary artery of interest based on the single angiographic projection registered to the CT imaging data.

Description

technical field [0001] Embodiments of the subject matter disclosed herein relate to medical imaging, and more particularly to the registration of images obtained via invasive angiography techniques with computed tomography data. Background technique [0002] Invasive angiography may involve the insertion and threading of a catheter into an artery through which a contrast agent may be injected. X-rays attenuated by the contrast-filled artery can then be acquired via x-ray imaging techniques, thereby generating high-resolution two-dimensional (2D) projections of the coronary tree region. In some examples, multiple 2D projections may be employed to obtain an accurate three-dimensional (3D) and functional representation of the coronary tree by manually or automatically registering the 2D projections with each other. [0003] Computed tomography (CT) angiography is an alternative non-invasive technique for diagnosing coronary artery disease. Specifically, in CT angiography, the...

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
Patent Type & AuthorityApplications(China)
IPC IPC(8): A61B6/03
CPCA61B6/032A61B6/504A61B6/481A61B6/5211A61B6/466A61B6/507A61B6/02A61B6/5235A61B6/037A61B6/5217A61B6/461A61B6/465A61B6/545A61B6/035A61B6/503
Inventor雷吉斯·维兰特利利亚纳·拉姆斯苏菲·阿梅洛特
OwnerGE PRECISION HEALTHCARE LLC