PASC-Net:Plug-and-play Shape Self-learning Convolutions Network with Hierarchical Topology Constraints for Vessel Segmentation
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arXiv
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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866915372463030272 |
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| author | Zhang, Xiao Jin, Zhuo Wu, Shaoxuan Wang, Fengyu Peng, Guansheng Zhang, Xiang Huang, Ying Chen, JingKun Feng, Jun |
| author_facet | Zhang, Xiao Jin, Zhuo Wu, Shaoxuan Wang, Fengyu Peng, Guansheng Zhang, Xiang Huang, Ying Chen, JingKun Feng, Jun |
| contents | Accurate vessel segmentation is crucial to assist in clinical diagnosis by medical experts. However,
the intricate tree-like tubular structure of blood vessels poses significant challenges for existing
segmentation algorithms. Small vascular branches are often overlooked due to their low contrast
compared to surrounding tissues, leading to incomplete vessel segmentation. Furthermore, the
complex vascular topology prevents the model from accurately capturing and reconstructing vascular
structure, resulting in incorrect topology, such as breakpoints at the bifurcation of the vascular tree.
To overcome these challenges, we propose a novel vessel segmentation framework called PASC Net. It includes two key modules: a plug-and-play shape self-learning convolutional (SSL) module
that optimizes convolution kernel design, and a hierarchical topological constraint (HTC) module
that ensures vascular connectivity through topological constraints. Specifically, the SSL module
enhances adaptability to vascular structures by optimizing conventional convolutions into learnable
strip convolutions, which improves the network's ability to perceive fine-grained features of tubular
anatomies. Furthermore, to better preserve the coherence and integrity of vascular topology, the HTC
module incorporates hierarchical topological constraints-spanning linear, planar, and volumetric
levels-which serve to regularize the network's representation of vascular continuity and structural
consistency. We replaced the standard convolutional layers in U-Net, FCN, U-Mamba, and nnUNet
with SSL convolutions, leading to consistent performance improvements across all architectures.
Furthermore, when integrated into the nnUNet framework, our method outperformed other methods
on multiple metrics, achieving state-of-the-art vascular segmentation performance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_04008 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | PASC-Net:Plug-and-play Shape Self-learning Convolutions Network with Hierarchical Topology Constraints for Vessel Segmentation Zhang, Xiao Jin, Zhuo Wu, Shaoxuan Wang, Fengyu Peng, Guansheng Zhang, Xiang Huang, Ying Chen, JingKun Feng, Jun Image and Video Processing Computer Vision and Pattern Recognition Accurate vessel segmentation is crucial to assist in clinical diagnosis by medical experts. However, the intricate tree-like tubular structure of blood vessels poses significant challenges for existing segmentation algorithms. Small vascular branches are often overlooked due to their low contrast compared to surrounding tissues, leading to incomplete vessel segmentation. Furthermore, the complex vascular topology prevents the model from accurately capturing and reconstructing vascular structure, resulting in incorrect topology, such as breakpoints at the bifurcation of the vascular tree. To overcome these challenges, we propose a novel vessel segmentation framework called PASC Net. It includes two key modules: a plug-and-play shape self-learning convolutional (SSL) module that optimizes convolution kernel design, and a hierarchical topological constraint (HTC) module that ensures vascular connectivity through topological constraints. Specifically, the SSL module enhances adaptability to vascular structures by optimizing conventional convolutions into learnable strip convolutions, which improves the network's ability to perceive fine-grained features of tubular anatomies. Furthermore, to better preserve the coherence and integrity of vascular topology, the HTC module incorporates hierarchical topological constraints-spanning linear, planar, and volumetric levels-which serve to regularize the network's representation of vascular continuity and structural consistency. We replaced the standard convolutional layers in U-Net, FCN, U-Mamba, and nnUNet with SSL convolutions, leading to consistent performance improvements across all architectures. Furthermore, when integrated into the nnUNet framework, our method outperformed other methods on multiple metrics, achieving state-of-the-art vascular segmentation performance. |
| title | PASC-Net:Plug-and-play Shape Self-learning Convolutions Network with Hierarchical Topology Constraints for Vessel Segmentation |
| topic | Image and Video Processing Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2507.04008 |