一种基于多源数据驱动的分层动态融合病灶识别系统

The hierarchical dynamic fusion lesion identification system driven by multi-source data utilizes multimodal feature extraction and fusion technology to solve the problems of lack of pathological priors, non-targeted feature extraction, and weak scene adaptability in existing methods. It achieves a significant improvement in the accuracy and comprehensiveness of lesion identification and is suitable for clinical applications involving multiple organs and various lesion types.

CN122156885BActive Publication Date: 2026-07-17THE THIRD MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE THIRD MEDICAL CENT OF THE CHINESE PEOPLES LIBERATION ARMY GENERAL HOSPITAL
Filing Date
2026-05-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing multimodal medical image fusion methods do not incorporate prior pathological knowledge, lack targeted feature extraction, lack scene adaptability, are difficult to adapt to small sample scenarios, and do not fully explore the complementarity of features of each modality, resulting in insufficient accuracy and comprehensiveness in lesion identification.

Method used

A hierarchical dynamic fusion lesion identification system based on multi-source data is adopted. Through CT feature extraction module, MRI feature extraction module, PET feature extraction module and ultrasound feature extraction module, combined with multi-task learning module and fusion module, the system uses adaptive spatial pyramid, attention-enhanced frequency-space dual-stream network, graph convolutional network and time-aware recurrent network and other technologies to extract the core features of each modality, and performs lesion identification through hierarchical attention and meta-learning.

Benefits of technology

It improves the accuracy and comprehensiveness of lesion identification, is compatible with multiple organs and lesion types, is suitable for clinical auxiliary diagnosis and lesion screening, solves the problems of missed diagnosis and misdiagnosis of lesions, and is adapted to the actual clinical needs of small samples and multiple scenarios.

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Abstract

本发明涉及病灶识别技术领域,具体涉及一种基于多源数据驱动的分层动态融合病灶识别系统。本系统包括:CT特征提取模块、MRI特征提取模块、PET特征提取模块、超声特征提取模块、影像语义特征提取模块、多任务学习模块、第一融合模块、第二融合模块和病灶识别模块。本发明针对性提取CT空间结构、MRI微观纹理、PET代谢活性异质性、超声动态运动特征,融入临床病理先验知识,采用分层注意力、图卷积、元学习等策略,解决现有方法特征提取针对性差、缺乏场景自适应、小样本泛化能力弱等缺陷,实现多模态特征精细化融合与场景自适应匹配。
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