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Quantitative shear wave elasticity imaging system

An elastography and shear wave technology, applied in ultrasonic/sonic/infrasonic Permian technology, ultrasonic/sonic/infrasound image/data processing, sonic diagnosis, etc., can solve hardware design difficulties, low equipment requirements and cost High cost and other problems, to achieve the effect of reducing design difficulty, reliable results, and reducing equipment costs

Active Publication Date: 2017-05-10
SASET CHENGDU TECH LTD
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of large amount of calculation, difficult hardware design and high cost caused by the use of original radio frequency signals (without beamforming) in the existing quantitative elastography technology, and to provide a low-requirement equipment, computational Ultrasound quantitative elastography system with small volume

Method used

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  • Quantitative shear wave elasticity imaging system
  • Quantitative shear wave elasticity imaging system
  • Quantitative shear wave elasticity imaging system

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Embodiment 1

[0050] Embodiment 1: as figure 2 , image 3 As shown, this embodiment provides an ultrasonic quantitative elastography system with low equipment requirements and a small amount of calculation, including:

[0051] The shear wave pulse generator is used to transmit the shear wave excitation pulse and detect the pulse signal;

[0052] ARFI pulse generator, used to transmit ARFI excitation pulse and detect pulse signal;

[0053] A probe for receiving shear wave echo signals or ARFI echo signals;

[0054] The control device 1 is used to control the switch of the shear wave pulse generator and the ARFI pulse generator, receive the shear wave echo signal and the ARFI echo signal, and calculate the strain ε at each position of the target area according to the ARFI echo signal, In this embodiment, the positions may be all point positions in the target area, or a specified number of target point positions in the target area (such as N uniformly distributed point positions in the tar...

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Abstract

The invention relates to the technical field of medical ultrasound imaging, in particular to a quantitative shear wave elasticity imaging system. The quantitative ultrasonic elasticity imaging method and system provided by the invention are based on strain of sliding window linear fitting and shear wave velocity detection algorithm of two-dimensional linear fitting, the noise immunity is relatively high, and results are relatively reliable. Moreover, ultrasonic universe quantitative elasticity imaging is realized under the condition that an extra load of an ultrasonic front-end storage and transmission module is not increased, and the design difficulty and equipment cost of the ultrasonic quantitative elasticity imaging system are greatly reduced.

Description

technical field [0001] The invention relates to the technical field of medical ultrasonic imaging, in particular to a quantitative shear wave elastography system. Background technique [0002] In recent years, tumor diseases have become the main killer that endangers the health of our people. The key to the prevention and treatment of tumor diseases lies in early detection. Clinically, changes in the mechanical characteristics of human tissues are often the most important early warning signals for tumor diseases, such as breast, thyroid and other tumor lesions. With the growth of the tumor, the viscoelasticity of the diseased tissue changes greatly compared with the normal tissue. For example, the difference between the breast cancer and the surrounding normal tissue is about 90 times. There are also large differences in the coefficients. Therefore, obtaining parameter information related to viscoelasticity of human tissue (such as deformation displacement, shear wave velo...

Claims

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Application Information

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IPC IPC(8): A61B8/08
CPCA61B8/085A61B8/485A61B8/52
Inventor 石丹尹皓刘西耀刘东权
Owner SASET CHENGDU TECH LTD
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