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PRF optimization method and device for Doppler ultrasound imaging

A technology of Doppler ultrasound and optimization method, which is applied in the field of PRF optimization of Doppler ultrasound imaging, can solve the problems of poor optimization effect and achieve the effect of improving accuracy and strong robustness

Active Publication Date: 2018-11-23
EDAN INSTR
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  • Claims
  • Application Information

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Problems solved by technology

[0007] For this reason, the first purpose of the present invention is to propose a PRF optimization method for Doppler ultrasound imaging, to realize PRF optimization for spectrums with different amplitude distributions, improve the accuracy of PRF optimization results, and solve existing PRF optimization problems. The method has the problem of poor optimization effect

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  • PRF optimization method and device for Doppler ultrasound imaging
  • PRF optimization method and device for Doppler ultrasound imaging
  • PRF optimization method and device for Doppler ultrasound imaging

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Embodiment Construction

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0035] The PRF optimization method and device for Doppler ultrasound imaging according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0036] figure 1 A schematic flowchart of a PRF optimization method for Doppler ultrasound imaging provided by an embodiment of the present invention.

[0037] Such as figure 1 As shown, the PRF optimization method for Doppler ultrasound imaging includes the following steps:

[0038] S11. Collect the Doppler spectrum within the p...

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Abstract

The invention provides a PRF optimization method and device for Doppler ultrasound imaging. The method comprises following steps: collecting Doppler spectrum within the preset duration of the currentPRF; obtaining a noise ratio of the Doppler spectrum; determining a target scale range in which the noise ratio is located; different scale ranges correspond to different adjustment factors for adjusting the PRF; determining a target adjustment factor according to the target ratio range; adjusting the current PRF according to the adjustment factor to obtain a target PRF. This method can realize segmentation optimization of Doppler spectrum, improve the accuracy of optimization results, and has strong robustness, adaptability and practicability.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a PRF optimization method and device for Doppler ultrasound imaging. Background technique [0002] In medical ultrasound imaging, in order to obtain high-quality images, different parameters are usually used when scanning different tissues and parts. However, the imaging parameters preset in the ultrasound instrument can no longer meet the clinical needs, and it takes a certain amount of time for the user to adjust the imaging parameters, which cannot quickly and effectively obtain the best display effect. [0003] In ultrasound imaging technology, the pulse repetition frequency (Pulse Recurrence Frequency, PRF) is used to adjust the range of blood flow velocity. When the PRF is smaller than the Nyquist frequency of the Doppler blood flow signal, the Doppler spectrogram will be aliased . If aliasing occurs only once along the velocity (frequency) direction, aliasing ca...

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Application Information

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IPC IPC(8): A61B8/00
CPCA61B8/488A61B8/52
Inventor 刘倩凌锋
Owner EDAN INSTR