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Ultrasonic imaging method and system for baseband beamforming

An ultrasonic imaging method, the technology of an ultrasonic imaging system, applied in the field of medical imaging

Active Publication Date: 2016-06-08
SHENZHEN DELICA MEDICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide a baseband beamforming ultrasonic imaging method and system for the problem that radio frequency beamforming relies on high-performance analog-to-digital conversion chips

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  • Ultrasonic imaging method and system for baseband beamforming
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  • Ultrasonic imaging method and system for baseband beamforming

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Embodiment Construction

[0024] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0025] Please refer to figure 1 , an embodiment of the present invention provides a baseband beamforming ultrasonic imaging method, which includes the following steps:

[0026] Step S110: Receive an echo signal. Please refer to image 3 , in this step, the ultrasonic probe 411 is used to receive the echo signal of the ultrasonic signal in the internal tissue of the human body. At this time, the echo signal received by the ultrasonic probe 411 is an acoustic signal, and the ultrasonic probe 411 converts the acoustic signal into an electrical signal. On the ultrasonic probe 411, there are different numbers of array elements according to different...

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Abstract

The invention provides a base band beam forming ultrasonic imaging method and system. An ultrasonic probe receives echo signals of ultrasonic signals in tissue, and base band signals are obtained by means of a series of technological means of frequency mixing, phase shifting, I / Q demodulation, low-pass filtering and the like. The frequency of the base band signals is much lower than that of original radio-frequency signals, and therefore analog-to-digital conversion chips with the frequency being 10 times that of the base band signals are bought very easily in domestic so as to obtain images with high resolution. Thus, limitation of high-performance analog-to-digital conversion chips is eliminated, and meanwhile cost is reduced.

Description

technical field [0001] The invention relates to the field of medical imaging, in particular to a baseband beam synthesis ultrasonic imaging method and system thereof. Background technique [0002] Medical ultrasound imaging, nuclear magnetic resonance imaging, X-ray computed tomography imaging and nuclear medicine imaging are known as the four modern medical imaging technologies. Compared with other imaging, medical ultrasound imaging has unique advantages such as good real-time performance, no damage, no pain, and low cost. [0003] Beamforming is an important part of the ultrasound imaging system, and the quality of the beamforming directly affects the effect of ultrasound imaging. The distance of the echo signal from the focal point to the ultrasonic probe is different on different paths. The distance on both sides of the path is the longest, and the distance on the middle path is the shortest. In this way, the time for the echo signal to reach the ultrasonic probe is di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
Inventor 邱维宝牟培田肖杨张雪郑海荣
Owner SHENZHEN DELICA MEDICAL EQUIP CO LTD