Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A non-invasive and high-precision method for elastography of blood vessel walls

An elastography, vascular wall technology, applied in ultrasound/sonic/infrasound image/data processing, medical science, ultrasound/sonic/infrasonic Permian technology, etc. Characterizing the elastic properties of blood vessel walls and other issues

Inactive Publication Date: 2016-02-24
XI AN JIAOTONG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These strain parameters can only describe the deformation in a specific direction, and the results cannot accurately describe the elastic properties of the vessel wall under actual noisy conditions
[0006] To sum up, the ultrasound data of B-ultrasound imaging in the longitudinal section of the vessel wall has its advantages in processing, but there is still a lack of effective mechanical parameters to effectively describe the mechanical properties of the longitudinal section of the vessel wall

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
  • A non-invasive and high-precision method for elastography of blood vessel walls
  • A non-invasive and high-precision method for elastography of blood vessel walls
  • A non-invasive and high-precision method for elastography of blood vessel walls

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0111] The subjects were supine, and an ultrasound device with a synchronous ECG monitor was used to collect B-mode imaging data of the carotid artery wall in the stable diastolic period. Figure 5 It is an ultrasound image displayed with ECG synchronization.

[0112] Figure 6a1 to Figure 6a2 In order to select two adjacent frames of B-ultrasound carotid artery wall images for off-line data processing and analysis, the optical flow field algorithm is first used to calculate Figure 6a1 The displacement estimation of blood vessels and surrounding tissues in the two frames of images and a2, the displacement field is as follows Figure 6b As shown, the FIR two-dimensional difference filter is used to filter the displacement field. Finally, according to the proposed method, the VonMises strain projection parameters can be obtained and imaged. Figure 6c It is the result of superimposing the VonMises strain projection parameters on the original B-mode image, which clearly show...

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 a method of noninvasive high-precision vessel wall elastography. The method comprises the following steps: acquiring the radio-frequency data or video data of B-mode ultrasonic imaging of a vessel wall longitudinal section; making an off-line analysis on the acquired radio-frequency data or video data to obtain the displacement field of each frame of radio-frequency data or video data; filtering the displacement fields of the radio-frequency data or video data with an FIR two-dimensional difference filter to obtaining strain components on the longitudinal section, including a strain component Epsilonxx in the axial direction of a ultrasonic emission beam, a lateral strain component Epsilonzz and a shearing strain component Epsilonxz; giving a Von Mises strain projection parameter ZetaVM-longiProj and a calculation formula thereof, and imaging the Von Mises strain projection parameter ZetaVM-longiProj to achieve noninvasive high-precision vessel wall elastography. Precise and quantitative vessel wall elastography can be achieved through the method, and the result is superior to those of the conventional other vessel wall strain imaging methods.

Description

【Technical field】 [0001] The invention relates to a method for imaging blood vessel walls, in particular to a method for non-invasive and high-precision elastic imaging of blood vessel walls. 【Background technique】 [0002] Ultrasound elastography of vessel wall has become a hot topic in international research in recent years because of its non-invasiveness. Ultrasonic strain parameter imaging of the vessel wall has mainly gone through three stages of development: 1) the first proposed one-dimensional strain, mainly imaging the axial strain parameters along the direction of the ultrasound beam; Parametric imaging (such as axial strain, transverse strain, and shear strain) describes the strain characteristics of the vessel wall along the direction of the sound beam and perpendicular to the direction of the sound beam; Each component of the strain tensor below (such as radial strain, circumferential strain and shear strain) describes its radial, circumferential and shear defo...

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 & Authority Patents(China)
IPC IPC(8): A61B8/08A61B5/0402
Inventor 张红梅阮骊韬张青哲郭佑民万明习单宝文
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com