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Shear wave velocity estimation method and system based on real-time curve tracking technology

A real-time tracking and shear wave technology, applied in sonic diagnosis, infrasonic diagnosis, ultrasonic/sonic/infrasonic diagnosis, etc., it can solve the problems of wave velocity estimation error, the arrival time of interference peak, etc., to eliminate artifacts, accuracy and reliability. The advantage of anti-noise performance and the effect of improving calculation accuracy

Pending Publication Date: 2022-04-29
SHAANXI NORMAL UNIV
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Problems solved by technology

[0004] However, the peak displacement obtained by using the peak time algorithm only appears after a small part of the wave passes through the observation point, so the part of the wave before the peak can interact with the boundary, and it is easily affected by noise, which interferes with the peak arrival time and causes the wave velocity estimated error

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  • Shear wave velocity estimation method and system based on real-time curve tracking technology
  • Shear wave velocity estimation method and system based on real-time curve tracking technology
  • Shear wave velocity estimation method and system based on real-time curve tracking technology

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[0054] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0055] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention provides a shear wave velocity estimation method and system based on a real-time curve tracking technology, which can improve the defects of a peak time algorithm and improve the accuracy of shear wave velocity estimation so as to obtain a shear wave velocity image with higher quality. Comprising the following steps: exciting to generate shear waves at a set position by using a multi-focus shear wave excitation method; capturing the generated shear wave by adopting an ultra-fast plane wave imaging technology and extracting shear wave information; acquiring a shear wave real-time tracking curve in the target area according to the extracted shear wave information, and performing curve fitting; and estimating the shear wave speed of the target area according to the fitted shear wave real-time tracking curve.

Description

technical field [0001] The invention relates to the technical field of ultrasonic elastography, in particular to a shear wave velocity estimation method and system based on real-time curve tracking technology. Background technique [0002] The elasticity information of biological tissue can provide valuable reference information for the diagnosis of tissue function and disease. The core of ultrasonic shear wave elastography is the estimation of shear wave velocity and the reconstruction of shear wave velocity image, which is very important for the estimation of shear wave velocity. [0003] At present, the commonly used method for shear wave velocity estimation is the peak time algorithm, which is an algorithm that uses the time peak displacement data of the shock acoustic radiation force response outside the excitation area to characterize the shear wave velocity of the material. It is more robust than the case. [0004] However, the peak displacement obtained by using th...

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Application Information

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IPC IPC(8): A61B8/00
CPCA61B8/485A61B8/5238
Inventor 郭建中戴嘉悦吕倩李宇王永领
Owner SHAANXI NORMAL UNIV
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