Method for small-area three-dimensional passive cavitation imaging and three-dimensional composite imaging based on area array

A passive cavitation imaging and three-dimensional composite technology, which is applied in the fields of ultrasound/sound wave/infrasonic image/data processing, medical science, and sound wave diagnosis, etc., can solve problems such as unrealizable and slowing down of 3D reconstruction speed

Active Publication Date: 2015-09-09
XI AN JIAOTONG UNIV
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional single RBF interpolation method does not do any processing on the original 3D volume data. Although...

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
  • Method for small-area three-dimensional passive cavitation imaging and three-dimensional composite imaging based on area array
  • Method for small-area three-dimensional passive cavitation imaging and three-dimensional composite imaging based on area array
  • Method for small-area three-dimensional passive cavitation imaging and three-dimensional composite imaging based on area array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0098] The present invention will be described in detail below with reference to the drawings and embodiments.

[0099] The three-dimensional passive cavitation imaging method involved in the present invention includes the following specific steps:

[0100] Step 1: Calculate the power spectrum estimation of the signal based on the spectrum estimation theory, and set the threshold according to the maximum amplitude of the three-dimensional data collected by the area array to clarify the frequency components to be filtered and reduce the calculation time. Design a multi-cascade adaptive notch system to filter out the high-order and ultra-high-order harmonic components of the n×m channels received by the array array.

[0101] Step 2: Calculate the distance between the scattering point and the array element and the compensation coefficient for signal loss and receiving sensitivity, and use the passive imaging algorithm to calculate the three-dimensional data of the source intensity in 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 provides a method for small-area three-dimensional passive cavitation imaging and three-dimensional composite imaging based on an area array, wherein a two-dimensional passive cavitation imaging algorithm is expanded to a three-dimensional algorithm and a multi-stage continuous self-adaption trapped wave system is designed to research a mechanism of inertial oscillation of a cavitation micro bubble in a sound field, and a dynamic aperture receiving technique is used for further processing of three-dimensional data. Delayed array element receiving of the area array is then disposed to adjust an angle of a passive receiving plane, three-dimensional conversion is carried out on the three-dimensional data and then three-dimensional recombination is carried out on the data in order to realize the three-dimensional passive cavitation imaging. By the method for the small-area three-dimensional passive cavitation imaging and the three-dimensional composite imaging based on the area array provided by the invention, three-dimensional passive cavitation multi-angle compound imaging with high resolution, high signal-to-noise ratio and high efficiency can be obtained, and a selective monitoring manner can be provided for clinical operations by combing the passive cavitation imaging with other techniques.

Description

Technical field [0001] The invention relates to the technical field of ultrasound imaging, in particular to a three-dimensional passive cavitation imaging method suitable for high resolution, high signal-to-noise ratio and high efficiency. Background technique [0002] The High Intensity Focused Ultrasound (HIFU) transducer will produce a cavitation effect near the focal area under the action of the focused sound field. The cavitation effect means that the unstable structure in the liquid is destroyed to produce a cavity (ie, micron level). The kinetic process of expansion, contraction, and collapse produced by the external driving force of bubbles) can be divided into inertial cavitation and non-inertial cavitation according to its physical mechanism. Inertial cavitation refers to the rapid expansion of microbubbles under the action of the negative pressure phase, and the rapid contraction until collapse under the action of the positive pressure phase. During this process, the m...

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): A61B8/00
CPCA61B8/4488A61B8/483A61B8/52
Inventor 万明习路舒宽
Owner XI AN JIAOTONG UNIV
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