Ultrasonic color Doppler image post-processing method

A color Doppler and post-processing technology, which is applied in image data processing, image enhancement, image analysis, etc., can solve the problems of heavy workload, multiple storage resources, and large space occupation, and achieve the elimination of abnormal points and isolated points , the effect of reducing outliers

Active Publication Date: 2016-05-18
南京云石医疗科技有限公司
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Problems solved by technology

In Mindray patent CN200510100147.9, the velocity direction of continuous frames is stored and processed, and the direction of the output velocity is corrected in combination with the blood flow energy variance threshold, which reduces the cavity inside the blood vessel and the color isolated points in the tissue. The determination of the energy threshold is related to The type of probe, the length of the transmitted signal, and the body part are related. The system needs to select different thresholds according to different parameter settings, which not only requires a lot of work, but also takes up a lot of space. In addition, the storage of the speed direction will take up more storage resources.

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[0019] The accompanying drawings non-limitingly disclose the schematic flow diagrams of the preferred embodiments of the present invention; the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Basic ultrasound color Doppler imaging mode processing, see figure 1 , The received echo signal 1 is first subjected to quadrature demodulation 2 (hilbert demodulation can also be used), and enters the black and white signal processing module 3 and the color signal processing module 4 according to the signal mode. The color signal processing module includes a wall filter, a blood flow parameter estimator to output signals such as energy, variance, blood flow, etc. The black and white signal processing module includes envelope detection, an envelope signal post-processing module to generate image grayscale signals, and finally The output signals of the two are sent to the pseudo-color coding and fusion disp...

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Abstract

The invention provides an ultrasonic color Doppler image post-processing method, which comprises the following steps of 1) setting a blood parameter estimation module in an ultrasonic color Doppler imaging system; 2) correspondingly receiving a blood flow variance signal and a blood flow velocity signal by a blood flow signal processing module; 3) setting a parameter pre-processing module in the ultrasonic color Doppler imaging system; 4) comparing and judging whether a signal is a blood flow signal or not by the parameter pre-processing module; 5) setting a spatial processing module for processing an image. Based on the above method, the generation of anomalous points is lowered maximally.

Description

Technical field [0001] The invention relates to an image processing method, in particular to an ultrasonic color Doppler image post-processing method, and belongs to the technical field of ultrasonic image processing. Background technique [0002] As a non-invasive, real-time detection method, ultrasonic diagnostic equipment is increasingly accepted by doctors and patients. Color Doppler imaging is a milestone for ultrasonic diagnostic equipment. Superimposing color blood flow on black and white images not only has two-dimensional ultrasound structure images, but also provides dynamic information of blood flow, which has a great effect on the diagnosis of vascular diseases. [0003] The Doppler signal is demodulated and processed by wall filtering, and then sent to the blood flow parameter estimator. The estimated speed, energy or variance of the three parameters or parts are sent to the digital scan converter (digital scan converter, DSC), and finally pseudo-color coding The hyp...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T7/0012G06T7/0016G06T2207/10132G06T2207/30104
Inventor 高彩红
Owner 南京云石医疗科技有限公司
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