Angles for ultrasound-based shear wave imaging

A technology of shear wave and ultrasound, which is applied in ultrasonic/sonic/infrasonic diagnosis, ultrasonic/sonic/infrasonic equipment control, sound wave diagnosis, etc. It can solve the problems of inaccuracy and time-consuming

Inactive Publication Date: 2020-03-20
SIEMENS MEDICAL SOLUTIONS USA INC
View PDF13 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is imprecise and time-consuming

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
  • Angles for ultrasound-based shear wave imaging
  • Angles for ultrasound-based shear wave imaging
  • Angles for ultrasound-based shear wave imaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Provides shear wave vector imaging. Tissue anisotropy causes shear waves to propagate mainly in preferential directions. Addressing anisotropy can improve shear wave elastography (SWEI) and provide additional clinical benefits. In many ultrasound systems, it is difficult to assess anisotropy because the angles of the push and track beams in SWEI are not under user control. Shear wave vector imaging uses vectors for propelling the beam and / or for detected shear wave propagation.

[0014] Shear wave vector imaging can use the angle at which the beam is pushed to better handle anisotropy. In conventional SWEI, the angle at which the beam is pushed is not controlled, but instead is perpendicular to the transducer. The angle of the push beam is selected using user controls or image processing and is controlled independently of the region of interest. By pushing the beam angle through user or automatic control, the resulting estimate of the shear wave properties may be mo...

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 angles for ultrasound-based shear wave imaging. For shear wave imaging with ultrasound, a direction of the ARFI beam is selected based on tissue information 11, such as being perpendicular to an orientation of tissue or other than perpendicular to a face of the transducer array. As a result, the estimated shear wave velocity 16 measured perpendicular to the ARFI beam 14 maybe closer to actual shear wave velocity. Alternatively or additionally, one or more vectors 18 of propagation of the shear wave are determined and displayed to the user, allowing the user to visualizean extent of anisotropy of the tissue to judge impact on the shear wave velocity estimation.

Description

Background technique [0001] This example relates to shear wave imaging. Shear wave velocity in tissue can be diagnostically useful, so ultrasound is used to estimate shear velocity in tissue of a patient. Shear waves are generated at the focal point of the ARFI by transmitting an acoustic radiation force pulse (ARFI) along a transmitted scan line near or in the region of interest. It is assumed that the shear wave propagates mainly perpendicular to the transmission scan line. Ultrasound scans monitor the propagation of shear waves in a region of interest. The arrival time of the shear wave at a distance from the origin of the shear wave is used to determine the velocity of the shear wave in the tissue. The velocity for different locations within the region of interest can be estimated, providing a spatial distribution of shear wave velocity. [0002] Anisotropic tissue may affect shear wave generation, propagation, and detection. Muscle, collagen, or other fibers may caus...

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
CPCA61B8/485A61B8/5207A61B8/44A61B8/488G01S7/52042A61B8/469A61B8/463G01S7/52022G01S15/8915G01S7/52073G01S7/52071A61B8/54A61B8/4444A61B8/5223A61B8/085A61B8/14
Inventor Y.拉拜德
Owner SIEMENS MEDICAL SOLUTIONS USA INC
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