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Ultrasonic method for quantifying non-linear shear wave elasticity of medium and device for implementing method

A shear wave and ultrasonic technology, applied in the direction of ultrasonic/sonic/infrasonic equipment control, ultrasonic/sonic/infrasonic diagnosis, ultrasonic/sonic/infrasonic Permian technology, etc., can solve the problem of inability to detect soft tissue cancer, etc.

Pending Publication Date: 2022-07-15
声科影像有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technique cannot detect soft tissue cancers, which exhibit similar elasticity to noncancerous media on conventional elastography images

Method used

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  • Ultrasonic method for quantifying non-linear shear wave elasticity of medium and device for implementing method
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  • Ultrasonic method for quantifying non-linear shear wave elasticity of medium and device for implementing method

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Embodiment Construction

[0110] In the various figures provided for illustration purposes, the same reference numbers refer to the same or similar elements.

[0111] figure 1 The imaging device 1 shown is intended to provide an image of a viscoelastic medium 2, which is a diffusive medium for ultrasonic compression waves, and in the case of medical applications may eg be a living body, such as a part of a patient's body (breast, liver, abdomen). and many more). The imaging device 1 is also adapted to study the propagation of elastic shear waves to provide an elastic image of the medium 2 .

[0112] For example by transmitting ultrasonic compression waves from the outer surface 3 of the medium 2 into the microcomputer 4 in the medium 2 (which includes at least one input interface 4b, such as a keyboard or similar device, and at least one output interface 4a, such as a screen or similar device) or any other electronic central unit to produce an image of the medium in which the ultrasonic compression w...

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Abstract

The invention relates to an ultrasonic method for quantifying the non-linear shear wave elasticity of a medium. The method comprises the following steps: A1. Acquiring a time sequence of shear wave elasticity data of the medium; a2.-during the acquisition of the shear waves, applying continuously varying deformations to the medium according to a predetermined sequence of deformations; a3, observing the evolution of actual deformation; and B.-quantizing the non-linear elasticity of the medium as a function of the time series of data and the evolution of the deformation.

Description

technical field [0001] The present invention relates to ultrasonic imaging methods and apparatus for providing images of viscoelastic media. Specifically, the method aims to quantify the nonlinearity of the medium, especially to detect soft cancerous regions in the medium (ie, non-sclerotic compared to non-cancerous medium). [0002] More specifically, the present invention relates to an imaging method using ultrasonic waves to observe a diffusive viscoelastic medium containing particles that reflect said ultrasonic waves. Background technique [0003] Ultrasound images can be obtained by different methods. For example, the obtained images may be of the static elastic ("strain" in English) type obtained by deformation of the tissue being observed, or of the shear wave elastic type ("shear wave elastography, SWE" in English). [0004] It is known to detect sclerotic cancers by ultrasound imaging of the medium by shear wave elastography ("shear wave elastography, SWE" in Eng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/52A61B8/08
CPCG01S7/52022G01S7/52042A61B8/485G01S7/52084G01S7/52073A61B8/5261A61B8/54A61B8/5207A61B8/085G01S7/5205A61B8/463
Inventor 张博佟玲西里尔·多尔戈洛夫伊莲娜·斯保赫杜什让-皮埃尔·亨利
Owner 声科影像有限公司