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Ultrasonic contrast method and device and storage medium

A technology of contrast-enhanced ultrasound and ultrasound contrast agent, which is applied in ultrasonic/sonic/infrasonic diagnosis, sonic diagnosis, infrasonic diagnosis, etc., can solve the problems of large harmonic noise and unsatisfactory tissue background noise suppression effect, and achieve harmonic noise suppression. , the effect of improving the effect

Active Publication Date: 2020-04-17
CHISON MEDICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, the present invention is to solve the technical problem in the prior art that the harmonic noise generated by tissue background changes is relatively large, which makes the suppression effect of tissue background noise unsatisfactory. Thereby providing a contrast-enhanced ultrasound imaging method, device, computer equipment and storage medium

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  • Ultrasonic contrast method and device and storage medium
  • Ultrasonic contrast method and device and storage medium
  • Ultrasonic contrast method and device and storage medium

Examples

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Embodiment 1

[0056] An embodiment of the present invention provides a method of contrast-enhanced ultrasound, such as figure 2 As shown, the method includes the following steps:

[0057] Step S201 , acquiring a plurality of multi-pulse signals, the plurality of multi-pulse signals are ultrasonic echo signals passing through a target area containing an ultrasound contrast agent, wherein there is a pulse repetition period between two adjacent multi-pulse signals.

[0058] Specifically, in the embodiment of the present invention, the multi-pulse signal may be a digital signal processed by the above-mentioned pulse processing unit, may be a double multi-pulse signal, or may be a triple multi-pulse signal. A pulse repetition period (pulse repetition period, PRP for short) is separated between two adjacent multi-pulse signals. The acquired multiple multi-pulse signals may be acquired from data stored in a memory. Since multiple multi-pulse signals are generated at different times. The last m...

Embodiment approach

[0070] In another alternative embodiment of the present invention, the multiple multi-pulse signals include a first multi-pulse signal, a second multi-pulse signal and a third multi-pulse signal, that is, a triple multi-pulse method is adopted, wherein:

[0071] The above step S201, obtaining multiple multi-pulse signals, includes: starting the first multi-pulse event to obtain the first multi-pulse signal; signal; start the third multi-pulse event after the interval between the pulse repetition period, and obtain the third multi-pulse signal;

[0072] Correspondingly, the above-mentioned step S202, performing subtraction processing on the plurality of multi-pulse signals, includes: calculating the sum of the first multi-pulse signal and the third multi-pulse signal, and then calculating the sum of the second multi-pulse signal Do the difference twice to get the processed signal.

[0073] Specifically, to obtain the first multi-pulse signal S 1 and put S 1Stored in the memo...

Embodiment 2

[0097] This embodiment provides a contrast-enhanced ultrasound device, which can be used to perform the above-mentioned contrast-enhanced ultrasound method, such as Figure 5 As shown, the device includes:

[0098] The acquisition module 501 is configured to acquire a plurality of multi-pulse signals, the plurality of multi-pulse signals are ultrasonic echo signals passing through a target area containing an ultrasound contrast agent, wherein there is a pulse repetition interval between two adjacent multi-pulse signals cycle.

[0099] The calculation module 502 is configured to perform subtraction processing on the multiple multi-pulse signals to eliminate noise signals in the multi-pulse signals to obtain processed signals.

[0100] A generating module 503, configured to generate an ultrasound contrast image by using the processed signal.

[0101] After the multiple multi-pulse signals are acquired, subtraction processing is performed to subtract the same part of the differ...

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Abstract

The invention discloses an ultrasonic contrast method and device and a storage medium. The method comprises the steps: obtaining a plurality of multi-pulse signals which are ultrasonic echo signals passing through a target region containing an ultrasonic contrast agent, and enabling every two adjacent multi-pulse signals to be spaced by one pulse repetition period; carrying out subtraction processing on the multiple multi-pulse signals to eliminate noise signals in the multi-pulse signals to obtain processed signals; and generating an ultrasound contrast image by using the processed signals, wherein in a pulse repetition period, the harmonic noise generated by the tissue background and the ultrasonic system is basically unchanged, the change is mainly concentrated on the ultrasonic contrast agent, the inhibition of the harmonic noise of the tissue background and / or the ultrasonic system can be better completed through subtraction, and the effect of ultrasonic contrast imaging is improved.

Description

technical field [0001] The present invention relates to the technical field of contrast-enhanced ultrasound, in particular to a method, device and storage medium of contrast-enhanced ultrasound. Background technique [0002] In contrast-enhanced ultrasound (Contrast-Enhanced Ultrasound, abbreviated as CEUS) imaging, multi-pulse technology has been used to improve contrast medium tissue ratio (Contrast-To-Tissue ratio, abbreviated as CTR). CTR is usually limited by the harmonic signals of body tissues generated during ultrasound propagation and the harmonic leakage of the ultrasound system. Since tissues and ultrasound systems are usually basically stable, the corresponding harmonic signals generated by them usually show In order to stabilize the background noise, many small signals from the ultrasound contrast agent (Ultrasound Contrast Agent, referred to as UCA) in CEUS imaging are covered up. It is critical to reduce this background noise so that the weak signal from the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/14A61B8/00
CPCA61B8/14A61B8/5215A61B8/5269A61B8/481
Inventor 王鋐张勇陈建军
Owner CHISON MEDICAL TECH CO LTD
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