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Method and system for estimating acoustic radiation force pulse imaging

A technology of acoustic radiation force and pulse, applied in the field of medical imaging, can solve the problem of low sensitivity of small displacement estimation, achieve the effect of improving efficiency and processing efficiency

Active Publication Date: 2015-06-03
LEPU MEDICAL TECH (BEIJING) CO LTD
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Problems solved by technology

[0004] Based on this, it is necessary to provide a high-sensitivity acoustic radiation force pulse imaging estimation method for the problem of low sensitivity of small displacement estimation

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  • Method and system for estimating acoustic radiation force pulse imaging
  • Method and system for estimating acoustic radiation force pulse imaging

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] Such as figure 1 Shown is a flow chart of an acoustic radiation force pulse imaging estimation method in an embodiment. The acoustic radiation force pulse imaging estimation method can be run on a computer. The acoustic radiation force pulse imaging estimation method includes:

[0031] Step 102, the data division step, reads the input data collected through the acoustic radiation force pulse imaging, and divides the input data into a predetermined number of data matrices.

[0032] Specifically, the input data is divided into m data matrices according to the lateral collection positions. ...

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Abstract

The invention relates to a method and a system for estimating acoustic radiation force pulse imaging. The method disclosed by the invention comprises the following steps: reading input data, and dividing the input data into a predetermined number of data matrixes; respectively carrying out forward filter processing and reverse filter processing on each data matrix, and carrying out Hilbert transform on the filtered data matrix to obtain analyzed data; carrying out cross-correlation algorithm on the analyzed data to obtain a predetermined number of displacement matrixes; accumulating various displacement matrixes, and obtaining a line displacement with the maximum accumulation sum to generate a new displacement matrix; carrying out spline interpolation on a new displacement matrix in the time direction three times; carrying out radon transform of an interpolation result to obtain a radon transform matrix; obtaining parameters of the acoustic radiation force pulse imaging, and obtaining the shear wave velocity according to the parameters and the radon transform matrix. According to the invention, errors generated by calculating displacement through cross-correlation are reduced; the calculation result is relatively accurate; furthermore, the infinitesimal displacement can be precisely estimated; the sensitivity is improved.

Description

technical field [0001] The invention relates to the field of medical imaging, in particular to an acoustic radiation force pulse imaging estimation method and system. Background technique [0002] Acoustic Radiation Force Impulse (ARFI) uses the radiation force generated by focused ultrasound beams within the power range of medical ultrasound to cause small deformations in local areas of biological viscoelastic tissues and form shear waves propagating laterally. , using ultrasonic imaging technology to track small deformations and calculate the lateral propagation velocity of shear waves, and finally use the elastic reconstruction algorithm to estimate the elastic distribution of tissue from the shear wave velocity. [0003] Acoustic radiation force pulse imaging calculation refers to estimating the displacement of the shear wave inside the tissue, and understanding the tissue situation through the judgment of the displacement in the later stage. There are many displacement...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00A61B8/08
Inventor 郑海荣冯歌王丛知曾成志杨戈曾博
Owner LEPU MEDICAL TECH (BEIJING) CO LTD
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