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Method for Improving Automatic Adjustment Performance of Ultrasound Doppler Imaging and Its Ultrasound System

A Doppler imaging and automatic adjustment technology, which is applied in the direction of blood flow measurement devices, can solve problems such as automatic adjustment errors, and achieve the effects of avoiding misjudgment, automatic adjustment efficiency, and improving adjustment accuracy

Active Publication Date: 2014-10-15
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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Problems solved by technology

Using this method, when the blood flow velocity is very low (or the PRF is too large), the blood flow signal area on the spectrogram is very small, and it may be misjudged as no signal, which will easily lead to automatic adjustment errors leading to the end

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  • Method for Improving Automatic Adjustment Performance of Ultrasound Doppler Imaging and Its Ultrasound System
  • Method for Improving Automatic Adjustment Performance of Ultrasound Doppler Imaging and Its Ultrasound System
  • Method for Improving Automatic Adjustment Performance of Ultrasound Doppler Imaging and Its Ultrasound System

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Embodiment Construction

[0019] In order to improve the accuracy and efficiency of the automatic adjustment structure, the following method is adopted to improve the automatic adjustment performance of ultrasonic Doppler imaging, which includes: performing down-sampling processing on the echo data to generate a down-sampled acoustic spectrum image; calling the down-sampled sound The spectrogram computes the adjusted Doppler spectrogram parameters. The present invention adjusts the parameters of the Doppler spectrogram in a disguised form through the down-sampling process, such as reducing the PRF, enlarging the spectrogram image, and then calculating the parameters of the Doppler spectrogram by calling the enlarged spectrogram image, It is used to automatically adjust Doppler imaging parameters to avoid misjudgment caused by too small blood flow signal area. The following examples illustrate the specific implementation of the method of the present invention in practical applications.

[0020] Usually...

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Abstract

The invention discloses a method for improving the automatic adjustment performance of ultrasonic Doppler imaging and an ultrasonic system thereof. The method includes: performing down-sampling processing on echo data to generate a down-sampled acoustic spectrum image; calling the down-sampled acoustic spectrum image Compute the adjusted Doppler spectrogram parameters. In the Doppler automatic adjustment method of the present invention, the present invention adopts a down-sampling method to process the echo data in parallel in two ways, one way adopts the original echo data to obtain the spectrogram, and the other way performs down-sampling on the original echo data to obtain the acoustic spectrogram. spectrogram. The spectrogram obtained by downsampling actually reduces the PRF and can enlarge the blood flow signal area. When searching for the signal boundary, the boundary search can be performed on the down-sampled spectrogram, which avoids misjudgment due to the small area of ​​the blood flow signal.

Description

technical field [0001] The invention relates to an automatic adjustment technology of Doppler acoustic spectrogram parameters, in particular to a method for improving the automatic adjustment performance of ultrasonic Doppler imaging and an ultrasonic system thereof. Background technique [0002] Pulse Doppler technology in ultrasonic Doppler diagnostic equipment transmits ultrasonic signals to the target body at a certain pulse repetition frequency (abbreviated as PRF), and forms a spectrogram through spectrum analysis of echo signals. The abscissa is Time, the ordinate is the Doppler frequency shift frequency, the higher the frequency, the faster the blood flow, and the position where the frequency is 0 is called the baseline. At the same time, the brightness at different frequency positions is different. The higher the brightness, the stronger the signal at this frequency point. The value of a statistical characteristic distribution (for example, Gaussian distribution), ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/06
Inventor 蒋勇崔晗黄勇范伟
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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