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Supersonic frequency composite imaging method and device

A composite imaging, ultrasonic frequency technology, applied in ultrasonic/sonic/infrasonic diagnosis, sonic diagnosis, infrasonic diagnosis and other directions, can solve the problems of complex circuit design and high cost, and achieve the effect of reducing complexity and implementation cost.

Active Publication Date: 2009-08-05
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned frequency compounding technology requires two sets of dynamic filtering devices to realize the detection of effective fundamental and harmonic signals, so the circuit design is relatively complicated and usually the cost is high

Method used

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  • Supersonic frequency composite imaging method and device
  • Supersonic frequency composite imaging method and device
  • Supersonic frequency composite imaging method and device

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Embodiment Construction

[0029] Such as image 3 As shown, the ultrasonic frequency compound imaging method according to this embodiment includes: a transmitting step 301 for transmitting at least two different ultrasonic pulses to the imaging target and receiving echoes of two different ultrasonic pulses; a superposition step 303 for The echoes of two different ultrasonic pulses are superimposed and processed to obtain two signals; the nonlinear processing step 305 is used to perform nonlinear processing on one of the signals, so that the spectrum of the nonlinearly processed signal is consistent with the other signal The frequency spectrum has overlapping frequency bands; and the accumulation step 307 is used to perform weighted addition of one signal after nonlinear processing and another signal, and the added signal is used to obtain a frequency composite image. In addition, the ultrasonic frequency compound imaging method according to this embodiment may also optionally include an amplification s...

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Abstract

The invention discloses a method and a device for compounding imaging by supersonic frequency, wherein the method comprises the steps of emission, segistration, non-linear processing and accumulating. On the basis of multiple impulse transmission harmonic imaging, the method carries out non-linear processing on multi pulse echo, so the original fundamental frequency component is modulated within the frequency band of the harmonic frequency component and one-time detection for harmonic frequency component can achieve the frequency compounding imaging of fundamental wave and the harmonics. On the premise of basically not losing the image quality, the method reduces the realization complexity of a circuit and the cost.

Description

technical field [0001] The invention relates to an ultrasonic imaging method and device, in particular to a fundamental wave and harmonic frequency compound imaging method and device. Background technique [0002] Harmonic imaging techniques are commonly used to improve the spatial and contrast resolution of ultrasound images. However, due to the limitation of the principle of harmonic imaging, the penetration of harmonic images is usually poor, so the ultrasonic imaging system usually adopts the technology of fundamental wave and harmonic compounding to improve the penetration of harmonic images. Some existing technologies have respectively given some different fundamental and harmonic signal composite strategies. In principle, the fundamental and harmonic frequency components are respectively detected from the echoes emitted once or more times, and the detected signals are The weighted superposition that changes with the depth is carried out, and the superimposed signal u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00G06T1/00
Inventor 张羽
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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