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

System and method for real-time ultrasonic elastography displacement estimation

A technology of ultrasonic elastography and displacement, which is applied in the directions of ultrasonic/sonic/infrasonic Permian technology, ultrasonic/sonic/infrasonic image/data processing, organ movement/change detection, etc., and can solve problems such as errors in the displacement field , to achieve the effect of solving phase aliasing and improving accuracy

Inactive Publication Date: 2014-06-04
SHENZHEN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It aims to solve the problems in the prior art that are prone to errors for complex displacement fields

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
  • System and method for real-time ultrasonic elastography displacement estimation
  • System and method for real-time ultrasonic elastography displacement estimation
  • System and method for real-time ultrasonic elastography displacement estimation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The present invention provides a method and system for real-time ultrasonic elastography displacement estimation. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0042] see figure 1 , which is a flowchart of the real-time ultrasonic elastography displacement estimation method of the present application. As shown in the figure, the real-time ultrasonic elastography displacement estimation method includes the following steps:

[0043] S1. Use the two-dimensional matching algorithm to estimate the two frames of RF signals to be processed, and obtain the displacement field , there is a displacement change between the two frames of radio frequency signals;

[0044] S2. Set a priori estimate tp , th...

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 system and a method for real-time ultrasonic elastography displacement estimation. The method includes: firstly, pre-estimating to-be-processed two frames of radio-frequency signals by means of the two-dimensional matching algorithm to obtain a displacement field U(u,v), wherein displacement variation exists between the two frames of radio-frequency signals; secondly, setting a priori estimate tp which is equal to the axial displacement Ut(u) of the displacement field U(u,v); thirdly, keeping displacement of the two frames of radio-frequency signals within a 1 / 4 wavelength; and finally, calculating phase shift according to the priori estimate tp and the lateral placement Ut(v) of the displacement field U(u,v) to obtain the axial displacement field u(t). By means of the system and the method for real-time ultrasonic elastography displacement estimation, the problem of phase aliasing in traditional phase shifting algorithm is solved, and estimation precision is effectively improved on the premise of giving consideration to the arithmetic speed.

Description

technical field [0001] The present invention relates to the technical field of ultrasound elastography, in particular to a real-time ultrasound elastography displacement estimation method and system. Background technique [0002] Soft tissue lesions are often accompanied by changes in tissue stiffness. For example, breast or prostate solid tumors are harder than normal tissue, while liquid cysts are less firm than normal tissue. Traditionally, clinicians use palpation to qualitatively judge the softness and firmness of masses. However, when the mass is buried deep inside the soft tissue or is small in size, it is difficult to detect these tissue lesions by palpation. Ultrasound elastography is a new ultrasound imaging technology that has developed rapidly in recent years. It can image tissue mechanical properties (such as tissue elasticity and tissue hardness) and provide more functional information for clinical disease diagnosis. [0003] However, there are certain defic...

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): A61B8/08
Inventor 陆敏华孙瑞超汪天富陈思平
Owner SHENZHEN 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