Method, system and equipment for tomography of mammary gland and image acquisition and processing method

Abstract

The invention provides a method, a system and equipment for tomography of the mammary gland and an image acquisition and processing method. The method for tomography of the mammary gland includes: acquiring at least two dark field images and at least two bright field images corresponding to each X ray source, wherein the at least two dark field images are acquired under the conditions that no article is scanned and no X ray source is started, and the at least two bright field images corresponding to each X ray source are acquired under the conditions that no article is scanned and a plurality of X ray sources arrayed at intervals on the same plane are started sequentially one by one; obtaining an average dark field image and an average bright field image corresponding to each X ray source by means of summating and averaging; correcting projection images, corresponding to the plurality of X ray sources, of a scanned article to obtain corrected projection images according to the average dark field image and the average bright field image corresponding to each X ray source; subjecting the corrected projection images to iterative reconstruction to obtain a reconstructed chromatographic image on the basis of a chromatographic image iterative reconstruction method. Accurate three-dimensional mammary gland structural information can be provided to effectively avoid the problem of image overlapping in traditional X-ray mammary gland imaging.

Description

technical field [0001] The invention relates to mammary gland X-ray tomographic imaging technology, in particular to a mammary gland tomographic imaging method and system, imaging equipment, and an image acquisition and processing method. Background technique [0002] X-ray imaging technology has become an indispensable influencing technology in the diagnosis of breast diseases, relying on X-ray fluoroscopy imaging technology to gradually meet the needs of breast disease diagnosis. There are three different technical means of X-ray fluoroscopy imaging: film imaging, digital X-ray imaging technology and direct digital X-ray imaging technology. Simple, easy to operate, cheap equipment and other advantages, so it has been widely used in mammography. [0003] However, the most widely used at present is to use X-ray imaging to obtain two-dimensional images, but this kind of image will cause redundant shadows and artifacts in the image itself caused by objects outside the imaging...

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Problems solved by technology

[0006] Based on this, it is necessary to provide a breast tomography method and system, an imaging device, and an image acquisition and processing method for the problems of traditional mammography, which can provide accurate three-dimensional breast structure information and effectively avoid traditional mammography. image overlapping problem

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