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Quantitative shear wave elastography method

An imaging method, elastography technology, applied in ultrasonic/acoustic/infrasonic image/data processing, acoustic wave diagnosis, infrasonic wave diagnosis, etc., can solve problems such as difficult hardware design, low equipment requirements, and small amount of calculation, so as to reduce design Difficulty, reliable results, and the effect of reducing equipment costs

Active Publication Date: 2017-05-10
SASET CHENGDU TECH LTD
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  • Claims
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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 existing quantitative elastography techniques, and to provide a low-requirement equipment, computational Ultrasound quantitative elastography method and system with small volume

Method used

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  • Quantitative shear wave elastography method
  • Quantitative shear wave elastography method

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Embodiment 1

[0051] Embodiment 1: as figure 1 As shown, the present invention provides a quantitative shear wave elastography method, comprising the following steps:

[0052] S100: Perform ARFI detection to obtain the strain ε at each position in the target area. In this embodiment, each position can be all point positions in the target area, or a specified number of target point positions in the target area (such as the target area N uniformly distributed point positions), or N regularly arranged point positions selected in the target area (the regular arrangement can be an equidistant arrangement, or a regular unequal arrangement, and each point may be arranged in a row, or may be arranged in other regular shapes); no matter the positions refer to all point positions in the target area, or N uniformly distributed target point positions, or N regularly arranged point positions, all of which contain at least one designated reference position, namely The obtained position strain ε contains...

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Abstract

The invention relates to the technical field of medical ultrasonic imaging, in particular to a quantitative shear wave elastography method. According to the ultrasonic quantitative elastography method and system based on strain of sliding window linear fitting and a shear wave velocity detection algorithm using two-dimensional linear fitting, higher noise immunity can be achieved, and a more reliable result can be obtained; meanwhile, under the condition that the load of an ultrasonic front-end storage and transmission module is not increased, ultrasonic whole-domain quantitative elastography is achieved, and the design difficulty of the ultrasonic quantitative elastography system and the equipment cost are greatly lowered.

Description

technical field [0001] The invention relates to the technical field of medical ultrasonic imaging, in particular to a quantitative shear wave elastography method. 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 尹皓石丹刘西耀刘东权
Owner SASET CHENGDU TECH LTD
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