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Method for increasing self-adjusting performance of ultrasonic Doppler imaging and ultrasonic system thereof

A Doppler imaging and automatic adjustment technology, which is applied in the direction of blood flow measurement devices, can solve the problems of automatic adjustment errors, etc., and achieve the effect of avoiding misjudgment, accurate and reliable Doppler automatic adjustment method, and efficient automatic adjustment

Active Publication Date: 2010-11-17
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 sonogram 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 increasing self-adjusting performance of ultrasonic Doppler imaging and ultrasonic system thereof
  • Method for increasing self-adjusting performance of ultrasonic Doppler imaging and ultrasonic system thereof
  • Method for increasing self-adjusting performance of ultrasonic Doppler imaging and ultrasonic system thereof

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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 amplified spectrogram image, using By automatically adjusting the Doppler imaging parameters, the misjudgment caused by the too small blood flow signal area is avoided. The following examples illustrate the specific implementation of the method of the present invention in practical applications.

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Abstract

The invention discloses a method for increasing the self-adjusting performance of ultrasonic Doppler imaging and an ultrasonic system thereof. The method comprises the following steps: performing down-sampling treatment to echoes, generating a down-sampling acoustic spectrum image; and calling the calculated Doppler spectrogram adjusted by the down-sampling acoustic spectrum image. The Doppler self-adjusting method of the invention adopts the mode of down-sampling to treat two-way parallel echoes, wherein one way uses the original echoes to obtain a spectrogram and the other way uses the original echoes to perform down-sampling and obtain a spectrogram. The PRF of the spectrogram obtained through down-sampling is reduced, thus the blood flow signal region can be expanded. When signal extension is searched, boundary research can be performed on the down-sampling spectrogram so as to avoid inaccurate decisions caused by the small blood flow signal region.

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), ...

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Application Information

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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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