Self-adapting time gain compensation controller of B ultrasonic system

A technology of time gain compensation and gain compensation, which is applied in the direction of echo tomography, etc., can solve the problems such as the inability to adjust the time gain compensation control curve, and achieve the effect of improving the effect

Inactive Publication Date: 2009-04-29
SHENZHEN LANDWIND IND
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a B-ultrasound system adaptive time gain compensation controller, which overcomes the

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  • Self-adapting time gain compensation controller of B ultrasonic system
  • Self-adapting time gain compensation controller of B ultrasonic system
  • Self-adapting time gain compensation controller of B ultrasonic system

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Embodiment Construction

[0021] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0022] Such as Figure 4 and Figure 5 As shown, the B-ultrasound system adaptive time gain compensation controller of the present invention includes the first rom memory (rom0), the second rom memory (rom1) and the third rom memory (rom2), and also includes the first 2-to-1 selector and The second 2 chooses 1 selector, stores the first time gain compensation control curve data (curve 0) in the first rom memory, stores the second time gain compensation control curve data (curve 1) in the second rom memory, and the third rom memory Internally store the third time gain compensation control curve data (curve 2), the first rom memory and the second rom memory are respectively connected to the input of the first 2-to-1 selector, the first 2-to-1 selector and the third rom memory They are respectively connected to the input terminals of the second 2-to-1 selec...

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Abstract

The invention discloses a self-adapting time-gain-compensation controller of a B-mode ultrasonic scanner system. The self-adapting time-gain-compensation controller comprises a first rom memory and a second rom memory, as well as an either-or selector, wherein, a first time-gain-compensation controlling curve data is stored in the first rom memory and a second time-gain-compensation controlling curve data is stored in the second rom memory; the first rom memory and the second rom memory are respectively connected to the input end of the either-or selector; the either-or selector takes input probe frequencies as selective controlling signals to output the first time-gain-compensation controlling curve data or the second time-gain-compensation controlling curve data according to different probe frequencies. The self-adapting time-gain-compensation controller of the B-mode ultrasonic scanner system sets a plurality of time-gain-compensation controlling curves according to attenuation curves corresponding to the different probe frequencies, and selects the corresponding time-gain-compensation controlling curves according to the different probe frequencies, thereby greatly improving the effect of time gain compensation.

Description

technical field [0001] The invention relates to the technical field of ultrasonic imaging equipment, in particular to an adaptive time gain compensation controller for a B-ultrasound system. Background technique [0002] The basic principle of ultrasonic imaging is to irradiate human organs with ultrasound, and use one or more of the emission, refraction, attenuation, frequency shift or change of sound velocity produced by the organs to the incident ultrasound to form the sonogram of the organs. The doctor is Lesions were observed on this sonogram. [0003] When ultrasonic waves propagate in the human body, energy attenuation will inevitably occur. Experimental research has confirmed that the deeper the depth, the greater the attenuation, and the higher the probe frequency, the greater the attenuation. According to medical literature, the amount of attenuation increases with the square of the frequency, which is basically linear with the transmission distance. For example:...

Claims

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Application Information

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IPC IPC(8): A61B8/14
Inventor 杨清珍丁伯成
Owner SHENZHEN LANDWIND IND
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