Point position association method of ipsilateral aberrant breast molybdenum target images

A point location and mammary gland technology, applied in mammography, radiological diagnostic equipment, medical science, etc., can solve problems such as non-existence, inability to match the same lesion point, and different compression degrees

Active Publication Date: 2018-08-14
SOUTHERN MEDICAL UNIVERSITY
View PDF12 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thinking of the above and other classical algorithms is to treat suspected calcification points and masses as a feature object, and the method formed with a similar strategy has at least the following defects: 1) Only compress images for a single CC or MLO position For detection, it is impossible to match the same lesion point in the CC image and the MLO image. Due to the deformable morphological characteristics of the breast, the degree of compression in different

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Point position association method of ipsilateral aberrant breast molybdenum target images
  • Point position association method of ipsilateral aberrant breast molybdenum target images
  • Point position association method of ipsilateral aberrant breast molybdenum target images

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0122] Such as Figure 2-3 As shown, a point position correlation method of ipsilateral ectopic mammography images, the lesion points on the CC compressed image are brought into the mathematical model, and the lesions are rotated to obtain the ectopic position on the same side as the CC compressed image. The MLO bit compresses the position on the image.

[0123] The present invention restores the uncompressed model of the mammary gland from the two images by performing 3D restoration modeling on the deformable mammary gland, and then compresses the uncompressed mammary gland at the MLO position to establish a model from the CC position to the uncompressed and then to the MLO. Bit-compressed mathematical model, so as to match the two images and find the location of the same lesion.

[0124] At the same time, according to the prior knowledge of those skilled in the art, if the projection of a non-deformable object in a certain orientation is a point, then the projection of the ...

Embodiment 2

[0135] A point position correlation method for ipsilateral ectopic mammography images, other features are the same as in Embodiment 1, the difference is that the steps for establishing a mathematical model are as follows:

[0136] S1. Using the CC-bit compressed image and the MLO-bit compressed image with lesion points as an input image, recovering a three-dimensional breast image in a free state.

[0137] Breast contour extraction from compressed images at CC and MLO positions.

[0138] Under normal circumstances, the free state of the mammary gland can be approximated as a half ellipsoid. Therefore, in this embodiment, the CC contour and the MLO position contour are used to restore the mammary gland in a three-dimensional free state.

[0139] First, before the 3D reconstruction of the breast, due to the fact that the actual breast contour after compression is larger than that in the free state, the contour in the compressed state is scaled, and the contour extracted from the...

Embodiment 3

[0160] A point position correlation method for ipsilateral ectopic mammography images, other features are the same as in Embodiment 1, the difference is: as Figure 7 and 8 As shown, the specific steps of restoring the three-dimensional breast image in step S1 are as follows:

[0161] S11. Scaling and extracting contours on the CC bit-compressed image and the MLO bit-compressed image respectively, and at the same time, rotating the scaled MLO bit-compressed image with the nipple as the center of rotation.

[0162] Due to the phenomenon that the breast contour will expand outward during the actual compression process, such as Figure 4 as shown, Figure 4 The left image in the figure is the CC breast image, and the right image is the MLO breast image. The white solid line is the outline in the compressed state, and the white dotted line is the outline in the free state.

[0163] Taking the straight line of the shortest distance from the center of the nipple to the chest wall...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a point position association method of ipsilateral aberrant breast molybdenum target images. The method has the advantages that lesion points in a CC-view compressed image aresubstituted into a mathematical model to obtain the positions of the rotated lesion points on an MLO-view compressed image which is ipsilateral aberrant to the CC-view compressed image, the CC-view compressed image with the lesion points and the MLO-view compressed image are used as the input images to recover a three-dimensional breast image in a free state, the lesion points of the CC-view compressed image are recovered into a lesion curve formed in the free state, MLO angle rotation is performed on the three-dimensional breast image and the lesion curve, MLO-view compression is performed on the rotated three-dimensional breast image and lesion curve, and the projection principle is used to project the lesion curve to the MLO-view compressed image to obtain the positions of the lesion points on the MLO-view compressed image. By the method, correspondence of the same lesion points of the two images is achieved, the point position association relationship of the ipsilateral aberrant breast molybdenum target images is built, and a doctor can be helped to comprehensively analyze the lesion points.

Description

technical field [0001] The present invention relates to the technical field of mammography images, in particular to a point position correlation method of ipsilateral heterotopic mammography images. Background technique [0002] With economic development and improvement of living standards, people pay more and more attention to their own health maintenance and early detection of diseases. As the number one killer of middle-aged and elderly women, breast cancer has an impact on their lives that cannot be ignored. According to statistics, about 1.7 million new breast cancers are diagnosed every year in the world, and the incidence of breast cancer in developed countries is higher than that in developing countries. It is estimated that the number of breast cancer patients will reach about 2.5 million by 2021, and the incidence rate will increase from less than 60 cases / 100,000 women (55-69 years old) to more than 100 cases / 100,000 women (Shen Kunwei, Li Hongwei. Breast Cancer ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61B6/00
CPCA61B6/502A61B6/5217A61B6/5235
Inventor 徐圆段小曼凌庆庆周凌宏秦耿耿陈卫国甄鑫曾辉
Owner SOUTHERN MEDICAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap