一种基于AI超声的动态乳腺密度风险评估方法

By using an AI-based ultrasound-based dynamic breast density assessment method, a spatiotemporal evolution topology map is constructed using multi-temporal ultrasound image sequences and deep convolutional neural networks. This solves the problem that traditional static assessment cannot capture dynamic changes in breast density, and enables accurate full-life-cycle prediction of breast health status.

CN122050848BActive Publication Date: 2026-07-17FUJIAN PROVINCIAL HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUJIAN PROVINCIAL HOSPITAL
Filing Date
2026-04-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing breast density assessment techniques mainly rely on static cross-sectional image analysis at a single time point, which cannot capture the dynamic changes in breast density over time. This results in insufficient sensitivity to subtle hyperplasia or degeneration trends within the breast, failing to meet the clinical need for accurate prediction of breast health status throughout the entire life cycle.

Method used

By acquiring multi-temporal ultrasound image sequences with physiological cycle timestamps, an elastic registration operation is performed to establish a unified spatial coordinate system across time dimensions. A deep convolutional neural network is used to extract spatial density feature maps and construct a spatiotemporal evolution topology map that maps the nonlinear changes in breast tissue morphology. Finally, the spatiotemporal features are synchronously aggregated through a spatiotemporal graph convolutional neural network to output a dynamic evolution trajectory vector that characterizes the hyperplasia and degeneration process inside the breast.

Benefits of technology

It achieves precise capture of the dynamic reconstruction process and nonlinear change law of breast tissue under the influence of endocrine and physiological cycles, improves the sensitivity to the evolution trajectory of potential physiological abnormalities, eliminates the lag and one-sidedness of single time point assessment, and outputs highly sensitive disease early warning status and breast health prediction throughout the life cycle.

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Abstract

本发明公开了一种基于AI超声的动态乳腺密度风险评估方法,属于乳腺风险评估技术领域,具体包括:获取带生理周期时间戳的多时相乳腺超声图像,经解剖结构基准点弹性配准,建立统一时空坐标系;再通过深度卷积神经网络提取腺体形态特征,生成每个时间节点对应的空间密度特征图。以局部特征为顶点、变形场与特征相似度为边,构建乳腺组织时空演变拓扑图;利用时空图卷积神经网络融合空间结构与时间变化信息,得到增生与退化的动态演进轨迹向量;将轨迹向量与健康人群基准线对比,计算时空偏离度得到动态风险系数,最终构建全生命周期预测模型,输出动态乳腺密度风险评估报告。
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