Ultrasonic imaging system and ultrasonic imaging method

A technology of ultrasonic imaging system and ultrasonic imaging method, which is applied in ultrasonic/acoustic/infrasonic diagnosis, acoustic diagnosis, infrasonic diagnosis, etc. It can solve problems such as low signal-to-noise ratio and weak far-field penetration of harmonic images, and achieve Effects that improve image quality

Inactive Publication Date: 2016-10-05
CHISON MEDICAL TECH CO LTD
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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of weak far-field penetration of harmonic images without introducing other shortcomings, and to provide an ultrasonic imaging system and method based on fundamental wave fusion harmonic imaging to improve the accuracy of ultrasonic images. quality
Combining the near-field mid-field harmonic signal and the far-field fundamental wave signal overcomes the problem of low signal-to-noise ratio caused by weak tissue harmonic far-field signals

Method used

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  • Ultrasonic imaging system and ultrasonic imaging method
  • Ultrasonic imaging system and ultrasonic imaging method
  • Ultrasonic imaging system and ultrasonic imaging method

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Embodiment Construction

[0027] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as Figure 5 As shown, an ultrasound imaging system includes: a transducer 10 , a transmitting beam module 20 , a beam receiving module 30 , a filter module 31 , a storage module 32 , a weighted fusion processing module 40 , an image processing module 50 , and a display 60 .

[0029] The transducer 10 is used for transmitting and receiving ultrasonic waves. The transmitting beam module 20 is connected to the transducer 10, and is used to control the transducer 10 to control the transmitting ultrasonic parameters, such as at least one of the frequency, delay, phase, duration, width or amplitude of the ultrasonic wave. The transmitting beam module 20 The transducer 10 is controlled to emit pulse waves through the above parameters. The transducer 10 can be a conventional probe such as a linear array probe, ...

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Abstract

The present invention provides an ultrasonic imaging system and method based on fundamental wave fusion harmonic imaging. After receiving and storing beams and matching filtering, extracting envelope signals from fundamental wave signals and harmonic signals and then weighting fusion. To make up for the weak far-field penetration of harmonics, combined with the advantages of good resolution of harmonic signals and strong penetration of fundamental signals, the far-field fundamental signal is fused with near-field and mid-field harmonic signals, thereby improving Image Quality. At the same time, in the process of signal fusion, in order to prevent the boundaries between the mid-field and far-field images to be clear, a smooth transition between the harmonic signal and the fundamental wave signal is used. While improving the resolution of the near field, it can ensure the penetration of the far field.

Description

technical field [0001] The invention relates to an ultrasonic imaging system and method, in particular to a fusion harmonic imaging method based on a fundamental wave, which is used in the field of medical ultrasonic images. Background technique [0002] Medical ultrasound images play a very important role in medical diagnosis, and have the characteristics of no damage to the human body, no pain, and various display methods. The traditional ultrasonic imaging equipment receives and transmits echo signals with the same frequency for imaging, that is, fundamental wave imaging. The pure use of fundamental wave imaging technology has many limitations. Compared with other diagnostic equipment such as CT, ultrasound images have problems such as lower resolution and limited imaging area. [0003] After the echo signal is nonlinearly modulated by human tissue, it generates higher harmonics such as integer multiples of the fundamental frequency, among which the amplitude of the seco...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00
Inventor 王鋐张勇杨成朱银凤
Owner CHISON MEDICAL TECH CO LTD
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