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

Optical coherent elastic imaging method and device

An elastography and optical coherence technology, applied in measurement devices, material analysis through optical means, scientific instruments, etc., can solve the problem of inability to comprehensively and accurately evaluate the anisotropic elastic characteristics of biological tissues and obtain axial elastic information and other issues to achieve a comprehensive and accurate assessment

Active Publication Date: 2020-07-28
BEIJING INFORMATION SCI & TECH UNIV
View PDF23 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, when the ultrasonic beam-induced optical coherent elastography method is used to image biological tissue, only the lateral elastic information of the measured biological tissue perpendicular to the external force direction can be obtained, but the measured biological tissue cannot obtain the Axial elastic information in the direction of external force, resulting in the inability to comprehensively and accurately evaluate the anisotropic elastic characteristics of biological tissues

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
  • Optical coherent elastic imaging method and device
  • Optical coherent elastic imaging method and device
  • Optical coherent elastic imaging method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047]As mentioned in the background technology, when the ultrasonic acoustic beam-induced optical coherence elastography method in the prior art is used to image biological tissues, it can only obtain the lateral elasticity information of the measured biological tissue in the direction of vertical external force, but cannot obtain the measured biological tissue. The axial elastic information of biological tissue parallel to the direction of external force, the specific reason will be explained below.

[0048] When measuring the elasticity of biological tissue, first use external force to induce elastic waves in the tissue, then detect the propagation of elastic waves through the imaging platform, and finally calculate the elastic modulus in the direction of elastic wave propagation according to the propagation speed of elastic waves. Therefore, in the elastic measurement of anisotropic biological tissue, the construction of the elastic wave imaging platform is the basis of the...

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

PropertyMeasurementUnit
densityaaaaaaaaaa
refractive indexaaaaaaaaaa
refractive indexaaaaaaaaaa
Login to View More

Abstract

The invention discloses an optical coherent elastic imaging method and a device. The optical coherent elastic imaging method uses an ultrasonic sound beam to induce a sample to be tested to generate afirst elastic wave and a second elastic wave perpendicular to a vertical propagation direction, so that when the optical coherence tomography method is used for imaging the first elastic wave and thesecond elastic wave, an imaging result containing elastic information in the first direction and the second direction can be obtained, so that the elastic information of the to-be-tested sample in the first direction and the elastic information of the to-be-tested sample d in the second direction can be obtained according to the imaging result, the purpose of measuring the axial and lateral elastic information of the tested sample is realized, and the purpose of comprehensive and accurate evaluation of the anisotropic elastic characteristics of the tested sample is realized.

Description

technical field [0001] The present application relates to the field of imaging technology, and more specifically, to an optical coherent elastography method and device. Background technique [0002] The difference in the elastic mechanical properties of biological tissues comes from the differences in the composition, structure and interaction of biomolecules, cells and samples. The measurement of the elasticity of biological tissues is of great significance for evaluating the physiological functions of samples, and can be used for eyeball, cardiovascular, breast, etc. , liver and other parts of the disease diagnosis. Age-related macular degeneration (AMD), a degenerative disease of the pigment epithelium in the macular area of ​​the retina, is one of the main causes of irreversible blindness in people over 60 years old. Retinal elasticity measurement can be used for risk assessment and early diagnosis of wet AMD, so as to achieve early intervention and treatment, so as to ...

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 Applications(China)
IPC IPC(8): A61B5/00A61B8/00G01N21/84G01N29/04
CPCA61B5/0066A61B8/485A61B8/488A61B8/4483A61B8/4488G01N29/041G01N21/84
Inventor 朱疆樊凡祝连庆杨强王重阳
Owner BEIJING INFORMATION SCI & TECH 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