Ultrasonic three-dimensional fluid imaging and speed measuring method

An ultrasonic and three-dimensional technology, applied in blood flow measurement devices, ultrasonic/sonic/infrasonic diagnosis, sound wave diagnosis, etc., can solve problems such as large measurement errors and inability to obtain three-dimensional speed, and achieve accurate speed measurement.

Active Publication Date: 2016-03-23
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

Since ultrasonic Doppler technology can only obtain the fluid velocity in the direction of propagation of the u

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  • Ultrasonic three-dimensional fluid imaging and speed measuring method
  • Ultrasonic three-dimensional fluid imaging and speed measuring method
  • Ultrasonic three-dimensional fluid imaging and speed measuring method

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Embodiment Construction

[0020] The technical means adopted by the present invention to achieve the intended invention purpose are further described below in conjunction with the drawings and preferred embodiments of the present invention.

[0021] figure 1 It is a flowchart of an ultrasonic three-dimensional fluid imaging and velocity measurement method according to an embodiment of the present invention. Among them, the method includes:

[0022] Step S101, adding or generating a fluid tracer in the flow field. Specifically, fluid tracers can be added to the fluid to be tested, such as micron-sized bubbles, or tiny particles, tiny droplets, etc. Tracer particles are generated internally, e.g. hydrogen bubbles in water.

[0023] Fluid tracer particles are uniformly distributed in the flow field and follow the fluid motion. When the tracer particles are irradiated by ultrasonic waves, due to the acoustic impedance between the particles themselves and the surrounding medium, they will reflect and sc...

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Abstract

The invention discloses an ultrasonic three-dimensional fluid imaging and speed measuring method. The method comprises the steps that 1, a fluid tracer is added or generated in a flow fluid; 2, an ultrasonic array energy converter is utilized for conducting 3D scanning on the flow fluid, and ultrasonic original 3D radio frequency data are collected; 3, on the basis of the collected and stored ultrasonic original 3D radio frequency data, a 3D ultrasonic particle picture sequence is formed; 4, on the basis of the 3D ultrasonic particle picture sequence, three-dimensional speed distribution of the flow fluid is calculated.

Description

technical field [0001] The invention relates to the technical field of ultrasonic particle image velocity measurement, in particular to an ultrasonic three-dimensional fluid imaging and velocity measurement method. Background technique [0002] Blood circulation is very important to maintain human life, and cardiovascular fluid mechanics has become the most active research in the development of biofluid mechanics and even biomechanics. In the early stage of cardiovascular disease, abnormal blood flow movement will lead to changes in blood flow velocity, shear force, vorticity and other parameters, which can be used as an important basis for early detection of cardiovascular disease and early warning of acute cardiovascular events. Due to the complex three-dimensional movement of blood in the blood vessels, the commonly used ultrasonic two-dimensional blood flow velocity measurement and imaging techniques (such as ultrasonic color Doppler) in medical clinics often cannot refl...

Claims

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Application Information

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IPC IPC(8): A61B8/00A61B8/06
CPCA61B8/00A61B8/06A61B8/481A61B8/483A61B8/5223
Inventor 钱明郑海荣牛丽丽周伟
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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