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An Imaging Method Combining Fundamental/Harmonic Fusion and Spatial Compounding

A technology of spatial compounding and imaging methods, which is applied in ultrasonic/acoustic/infrasonic diagnostics, acoustic diagnostics, infrasonic diagnostics, etc. It can solve the problems of image speckle and noise, improve clarity, reduce smearing effect, and improve matching degree. Effect

Active Publication Date: 2016-09-21
SASET CHENGDU TECH LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem of large image speckle noise in the fundamental wave / harmonic image fusion imaging in the prior art, and provide an imaging combining fundamental wave / harmonic fusion and spatial compounding that can effectively reduce the speckle noise in the image method, including the following steps:

Method used

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  • An Imaging Method Combining Fundamental/Harmonic Fusion and Spatial Compounding
  • An Imaging Method Combining Fundamental/Harmonic Fusion and Spatial Compounding

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Embodiment 1

[0028] Embodiment 1: as figure 1 , figure 2 As shown, in this embodiment, an imaging method combining fundamental / harmonic fusion and spatial compounding includes the following steps:

[0029] S100: Set 3 scanning deflection angles θ i , respectively θ 0 , θ 1 , θ 2 , scan the 3 scan deflection angles one by one as a scan traversal;

[0030] According to the preset transmission frequency f i and scan angle θ i Carry out cyclic scanning, switch the scanning deflection angle every frame, and obtain the scanning data D h (f i , θ i ), h is a natural number above 0, such as the scanning data of the first 6 frames are D 0 (f i , θ 0 ), D 1 (f i , θ 1 ), D 2 (f i , θ 2 ), D 3 (f i , θ 0 ), D 4 (f i , θ 1 ), D 5 (f i , θ 2 ); where D 0 (f i , θ 0 ), D 1 (fi , θ 1 ), D 2 (f i , θ 2 ) belongs to the first traversal scan, D 3 (f i , θ 0 ), D 4 (f i , θ 1 ), D 5 (f i , θ 2 ) belongs to the second traversal scan.

[0031] S200: scan data D for...

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Abstract

The invention relates to the field of medical ultrasonic imaging, in particular to a fundamental wave / harmonic wave fusion and space blending combination imaging method. A fundamental wave / harmonic wave differentiation and disposal mode is used on each frame of scanning data in a disposal procedure, fundamental wave images and harmonic wave images are synchronous completely on time, the goodness of fit on organization structures in fusion images is improved, and a tailing effect caused by organ movement in space blending images is reduced. In addition, because the images obtained by the method are based on a space blending imaging technology, inherent speckle noises of the fundamental wave / harmonic wave fusion images can be restrained effectively.

Description

technical field [0001] The invention relates to the field of medical ultrasonic imaging, in particular to an imaging method combining fundamental wave / harmonic wave fusion and space compounding. Background technique [0002] Medical ultrasound imaging technology has been widely used in clinical diagnosis and treatment because of its safety, real-time performance, non-invasiveness, and low cost. Compared with THI (tissue harmonic image) technology Compared with traditional fundamental wave imaging, it has the advantages of high axial and lateral resolution, and can eliminate near-field artifacts and sidelobe interference. However, the harmonic signal has nonlinear characteristics, and its energy increases with depth, and then gradually attenuates with depth after reaching a certain depth. Therefore, the signal-to-noise ratio of THI in the near field and far field is low, and the image quality is poor. [0003] In the Chinese Invention Patent Publication CN103202713A publishe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
CPCA61B8/5207A61B8/5269
Inventor 秦学刘东权
Owner SASET CHENGDU TECH LTD