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Photoacoustic mammary gland image reconstruction method and photoacoustic mammary gland image reconstruction system

An image reconstruction and mammary gland technology, applied in mammography, ultrasound/sonic/infrasonic image/data processing, ultrasound/sonic/infrasonic Permian technology, etc., can solve the problem of affecting imaging accuracy, easy to filter out tumor signals, etc. problem, to achieve the effect of improving accuracy, improving signal-to-noise ratio, and reducing noise

Active Publication Date: 2020-04-17
中川新迈科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing filtering method can reduce the noise, it is also easy to filter out the tumor signal and affect the accuracy of imaging.

Method used

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  • Photoacoustic mammary gland image reconstruction method and photoacoustic mammary gland image reconstruction system
  • Photoacoustic mammary gland image reconstruction method and photoacoustic mammary gland image reconstruction system
  • Photoacoustic mammary gland image reconstruction method and photoacoustic mammary gland image reconstruction system

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Embodiment 1

[0026] This embodiment discloses a photoacoustic breast image reconstruction method, such as figure 1 shown, including the following steps:

[0027] A. Obtain multi-channel ultrasound information;

[0028] B. Carry out time-frequency transformation for each channel of ultrasonic information respectively, and transform it into the time-frequency domain;

[0029] C. Analyze the time-frequency diagram and lock the location of the lesion to retain the effective information in the image;

[0030] D. Attenuate the positions other than the lesion position in the time-frequency image to improve the contrast between the lesion position and other positions;

[0031] E. Reversely transform the time-frequency domain information into the time domain to obtain photoacoustic information for noise reduction;

[0032] F. Imaging and cropping the photoacoustic information to obtain a breast imaging map.

[0033] Based on the time-frequency analysis method, this solution locks the lesion are...

Embodiment 2

[0035] Based on the above method, this embodiment discloses a specific implementation, which includes the following steps:

[0036] A, adopt array sensor to acquire multi-channel ultrasonic information, in this step, adopt array sensor to realize data acquisition, improve data acquisition amount, to enhance the comprehensiveness of data information acquisition;

[0037] B, using methods such as short-time fractional Fourier transform, S transform, etc. to carry out time-frequency transformation for each channel of image information, and transform it to the time-frequency domain;

[0038] C. In the time-frequency domain, time is the horizontal axis and frequency is the vertical axis. The photoacoustic signal of the tumor is more obvious in the time-frequency domain, and the area with high frequency component, high amplitude and aggregation state is marked as the lesion position;

[0039] D. Attenuate the positions other than the lesion position in the time-frequency diagram, sp...

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Abstract

The invention discloses a photoacoustic mammary gland image reconstruction method and a photoacoustic mammary gland image reconstruction system. The method comprises the following steps: A, acquiringmultiplex image information; b, respectively performing time-frequency conversion on each piece of image information, and converting the image information to a time-frequency domain; C, analyzing thetime-frequency diagram, and locking the focus position; D, attenuating the positions, except the focus position, in the time-frequency diagram; E, inversely transforming the time-frequency domain information into a time domain to obtain noise-reduced photoacoustic information; and F, cutting and analyzing the photoacoustic information to obtain a mammary gland image. The method is based on a time-frequency analysis method, time-frequency transformation is performed on the image information to convert the image information into the time-frequency domain, the focus tumor position is locked, andother positions are attenuated and then converted into the time domain, so the signal-to-noise ratio of reconstructed signals can be reduced, the signal-to-noise ratio of the breast tumor signals is improved, useful information of tumors is not lost while noise is reduced, and the accuracy of breast image reconstruction is improved.

Description

technical field [0001] The patent of the present invention relates to the technical field of mammary gland imaging, and more specifically relates to a photoacoustic mammary gland image reconstruction method and system. Background technique [0002] Breast diseases are diseases originating from breast glands, fat, lymph, blood vessels, nipples and other breast-related tissues, including breast inflammatory diseases, benign breast lesions, breast malignant tumors, congenital abnormalities, and gynecomastia. There are many existing methods for breast disease examination, including mammography, magnetic resonance imaging, ultrasound imaging, infrared imaging, photoacoustic imaging, and the like. [0003] Existing photoacoustic mammography reconstruction uses image acquisition, image clipping, and image analysis methods. Although this method can solve the defects of accuracy and time of other imaging techniques, it has the following problems when directly collecting and clipping ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00A61B8/08
CPCA61B5/0095A61B5/0091A61B8/0825A61B5/4312A61B5/7203A61B5/7257A61B5/72
Inventor 陈炳章
Owner 中川新迈科技有限公司