Boundary-enhanced local-global collaborative network for medical image segmentation

Abstract Medical imaging plays a vital role as an auxiliary tool in clinical diagnosis and treatment, with segmentation serving as a crucial foundational process in medical image analysis. Nonetheless, challenges such as class imbalance and indistinct boundaries of regions of interest (ROIs) often c...

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Main Authors: Haiyan Qiu, Chi Zhong, Chengling Gao, Changqin Huang
Format: Article
Language:English
Published: Nature Portfolio 2025-03-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-93875-9
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author Haiyan Qiu
Chi Zhong
Chengling Gao
Changqin Huang
author_facet Haiyan Qiu
Chi Zhong
Chengling Gao
Changqin Huang
author_sort Haiyan Qiu
collection DOAJ
description Abstract Medical imaging plays a vital role as an auxiliary tool in clinical diagnosis and treatment, with segmentation serving as a crucial foundational process in medical image analysis. Nonetheless, challenges such as class imbalance and indistinct boundaries of regions of interest (ROIs) often complicate medical image segmentation. Constructing a network capable of precisely locating small ROIs and achieving precise segmentation is a significant task. In this paper, we propose a boundary information-enhanced local-global collaborative network. This network leverages the local feature extraction capabilities of CNNs, the global feature recognition prowess of state space models exemplified by Mamba, and boundary feature enhancement to learn a more comprehensive representation. Specifically, we propose a local-global collaborative encoder via attention fusion. This encoder adeptly integrates local and global features through a deep attention fusion module to address the challenge of segmenting small ROIs in class-imbalanced scenarios. Subsequently, we develop a boundary information-enhanced decoder. Through the incremental implementation of boundary attention modules, this decoder emphasizes boundary features during image restoration, steering the network to achieve more complete segmentation. Extensive experiments on various public class-imbalanced medical image segmentation datasets demonstrate that the proposed BELGNet outperforms state-of-the-art methods.
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spelling doaj-art-1e97634211364b22a644f5d0bc16ca262025-08-20T02:52:16ZengNature PortfolioScientific Reports2045-23222025-03-0115111210.1038/s41598-025-93875-9Boundary-enhanced local-global collaborative network for medical image segmentationHaiyan Qiu0Chi Zhong1Chengling Gao2Changqin Huang3The Central Hospital of YongzhouThe Central Hospital of YongzhouZhejiang Key Laboratory of Intelligent Education Technology and Application, Zhejiang Normal UniversityZhejiang Key Laboratory of Intelligent Education Technology and Application, Zhejiang Normal UniversityAbstract Medical imaging plays a vital role as an auxiliary tool in clinical diagnosis and treatment, with segmentation serving as a crucial foundational process in medical image analysis. Nonetheless, challenges such as class imbalance and indistinct boundaries of regions of interest (ROIs) often complicate medical image segmentation. Constructing a network capable of precisely locating small ROIs and achieving precise segmentation is a significant task. In this paper, we propose a boundary information-enhanced local-global collaborative network. This network leverages the local feature extraction capabilities of CNNs, the global feature recognition prowess of state space models exemplified by Mamba, and boundary feature enhancement to learn a more comprehensive representation. Specifically, we propose a local-global collaborative encoder via attention fusion. This encoder adeptly integrates local and global features through a deep attention fusion module to address the challenge of segmenting small ROIs in class-imbalanced scenarios. Subsequently, we develop a boundary information-enhanced decoder. Through the incremental implementation of boundary attention modules, this decoder emphasizes boundary features during image restoration, steering the network to achieve more complete segmentation. Extensive experiments on various public class-imbalanced medical image segmentation datasets demonstrate that the proposed BELGNet outperforms state-of-the-art methods.https://doi.org/10.1038/s41598-025-93875-9Medical image segmentationDeep learningState space modelsAttention mechanism
spellingShingle Haiyan Qiu
Chi Zhong
Chengling Gao
Changqin Huang
Boundary-enhanced local-global collaborative network for medical image segmentation
Scientific Reports
Medical image segmentation
Deep learning
State space models
Attention mechanism
title Boundary-enhanced local-global collaborative network for medical image segmentation
title_full Boundary-enhanced local-global collaborative network for medical image segmentation
title_fullStr Boundary-enhanced local-global collaborative network for medical image segmentation
title_full_unstemmed Boundary-enhanced local-global collaborative network for medical image segmentation
title_short Boundary-enhanced local-global collaborative network for medical image segmentation
title_sort boundary enhanced local global collaborative network for medical image segmentation
topic Medical image segmentation
Deep learning
State space models
Attention mechanism
url https://doi.org/10.1038/s41598-025-93875-9
work_keys_str_mv AT haiyanqiu boundaryenhancedlocalglobalcollaborativenetworkformedicalimagesegmentation
AT chizhong boundaryenhancedlocalglobalcollaborativenetworkformedicalimagesegmentation
AT chenglinggao boundaryenhancedlocalglobalcollaborativenetworkformedicalimagesegmentation
AT changqinhuang boundaryenhancedlocalglobalcollaborativenetworkformedicalimagesegmentation