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Elastic imaging method and system of shear waves

A technology of elastography and shear wave, which is applied in the direction of acoustic wave diagnosis, infrasonic wave diagnosis, ultrasonic/sonic wave/infrasonic wave diagnosis, etc., can solve the problem of low reliability of shear wave, and achieve the effect of improving reliability and comprehensiveness

Active Publication Date: 2017-12-26
SONOSCAPE MEDICAL CORP
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Problems solved by technology

[0003] However, the shear wave velocity and the Young's modulus calculated according to the shear wave velocity are only part of the tissue information that can be reflected in the shear wave propagation process, and only reflect the tissue hardness information. The reliability of shear wave detection is low.

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  • Elastic imaging method and system of shear waves

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0031] Histological research shows that viscoelasticity is the best index to reflect the mechanical information of human tissue. That is to say, in addition to elasticity, viscosity also needs to be considered, and shear wave velocity information alone is not enough to evaluate the mechanical properties of tissues as a whole. At the same time, most tissues in the human body are anisotropic and dynamic, such as muscle and liver. Additional parameters are therefore required to assess the mechanical properties of the tissue. During shear wave propagation, the amplitude, frequency and waveform will change, and these changes can be used to measure the reliability and accuracy of shear wave velocity estimation and as an auxiliary method to evaluate tissue mechanics Attributes.

[0032] Based on the above prin...

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Abstract

The invention discloses an elastic imaging method and system of shear waves. According to the method and system, speed information and attenuation information in the propagation process of the shear waves are measured and displayed, the technical problems are solved that in the prior art, the elastic imaging system of the shear waves is single in measured object so that organization information cannot be reflected comprehensively, the speed and attenuation information of the shear waves can be reflected, and then the method and system help to improve the reliability and comprehensiveness of shear wave detection. The elastic imaging method and system of the shear waves can be widely applied to various elastic imaging systems of the shear waves.

Description

technical field [0001] The invention relates to the technical field of ultrasonic imaging, in particular to a shear wave elastography method and system. Background technique [0002] Two-dimensional shear wave elastography mainly measures the propagation velocity of shear wave in tissue, and then directly maps the shear wave velocity to a specific color table, correspondingly mapping different velocity values ​​into different colors to display on the image ; or according to the formula, combined with other parameters such as tissue density, the shear wave velocity is converted into Young's modulus, and then through a specific color table, the corresponding different Young's modulus values ​​are mapped to different colors and displayed on the image. Doctors or operators can intuitively judge the hardness information of the tissue in the region of interest according to the color of the image, and then determine the abnormal region. [0003] However, the shear wave velocity an...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00
CPCA61B8/485A61B8/5207
Inventor 朱超超刘德清冯乃章宋妍
Owner SONOSCAPE MEDICAL CORP
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