Multi-angle plane wave coherent color Doppler imaging method

A color Doppler and imaging method technology, applied in the field of multi-angle plane wave coherent color Doppler imaging, can solve the problems of large time error and large imaging error in ultrasonic imaging, and achieves improved efficiency, shortened imaging time, and reduced imaging effect of error

Inactive Publication Date: 2017-04-26
ZHUHAI WELLHOME MEDICAL TECH CO LTD
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Problems solved by technology

However, the quantitative analysis of blood flow usually requires an ultrasonic pulse repetition frequency of several kilohertz, while the frame rate of traditional imaging is only tens of hertz. Therefore, the calculation of Doppler spectrum is limited to a singl...

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  • Multi-angle plane wave coherent color Doppler imaging method
  • Multi-angle plane wave coherent color Doppler imaging method

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Embodiment Construction

[0031] Such as figure 1 , figure 2 , image 3 Shown, the present invention comprises the following steps:

[0032] (1) Place an array element group consisting of several ultrasonic transducers on the imaging area, and excite all the ultrasonic transducers at the same time, thereby generating an ultrasonic plane wave propagating to the imaging area;

[0033] (2) Delaying and deflecting the array element groups in step (1) to generate ultrasonic plane waves propagating to the imaging area at different angles;

[0034] (3) The ultrasonic plane waves in each angular direction generated in step (2) are scattered by tissue in the imaging area to form echo signals corresponding to each of the ultrasonic plane waves;

[0035] (4) performing coherent composite superposition processing on each of the echo signals in step (3) to obtain a composite ultrasonic image based on the imaging area;

[0036] (5) After filtering out the non-blood flow signals of the composite ultrasound image...

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Abstract

The invention discloses and provides a multi-angle plane wave coherent color Doppler imaging method which is high in imaging frame frequency, high in imaging efficiency and good in imaging effect and which can generate a more precise and reliable color blood flow image by combining. As all array element sets on an ultrasonic transducer are excited at the same time to generate ultrasonic plane waves instead of traditional point-by-point transmitted ultrasonic waves, whole imaging time is effectively shortened, imaging errors due to time difference overlap are also effectively reduced and imaging efficiency is improved; multiple plane waves are propagated to an imaging area by means of delayed deflection, a precise real-time composite image is acquired by coherence combination of various echo signals, the image can be subjected to non-blood-flow signal removal and calculation to generate a precise reliable color blood flow image. The multi-angle plane wave coherent color Doppler imaging method is applicable to the field of ultrasonic imaging.

Description

technical field [0001] The invention relates to a multi-angle plane wave coherent color Doppler imaging method. Background technique [0002] Ultrasound imaging has the advantages of safety, non-invasiveness, low cost, and real-time imaging in medical diagnosis. After half a century of development, it has become one of the most widely used imaging diagnostic equipment in hospitals. The ultrasonic callback signal can not only be used for tissue imaging, but also provide real-time motion information of the detection target. In human blood vessels, plasma components such as red blood cells and platelets are driven by blood circulation and flow in different quick-freezes. Ultrasonic Doppler imaging is based on the Doppler effect between ultrasonic signals and blood scatterers. In addition to providing information on the shape of blood vessels Images can also be used to detect or judge hemodynamic information such as blood flow velocity and flow stability. Accordingly, the appli...

Claims

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Application Information

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IPC IPC(8): A61B8/00A61B8/08
CPCA61B8/085A61B8/4488A61B8/488A61B8/5207A61B8/5269
Inventor 赵三多张红卫
Owner ZHUHAI WELLHOME MEDICAL TECH CO LTD
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