CVAIJun 14, 2025

MS-UMamba: An Improved Vision Mamba Unet for Fetal Abdominal Medical Image Segmentation

arXiv:2506.12441v1h-index: 3
Originality Incremental advance
AI Analysis

This is an incremental improvement for medical imaging researchers working on fetal ultrasound segmentation.

The authors tackled fetal ultrasound image segmentation by proposing MS-UMamba, a hybrid convolutional-mamba model that addresses challenges like blurred boundaries and small anatomical structures, achieving excellent segmentation performance on a non-public dataset.

Recently, Mamba-based methods have become popular in medical image segmentation due to their lightweight design and long-range dependency modeling capabilities. However, current segmentation methods frequently encounter challenges in fetal ultrasound images, such as enclosed anatomical structures, blurred boundaries, and small anatomical structures. To address the need for balancing local feature extraction and global context modeling, we propose MS-UMamba, a novel hybrid convolutional-mamba model for fetal ultrasound image segmentation. Specifically, we design a visual state space block integrated with a CNN branch (SS-MCAT-SSM), which leverages Mamba's global modeling strengths and convolutional layers' local representation advantages to enhance feature learning. In addition, we also propose an efficient multi-scale feature fusion module that integrates spatial attention mechanisms, which Integrating feature information from different layers enhances the feature representation ability of the model. Finally, we conduct extensive experiments on a non-public dataset, experimental results demonstrate that MS-UMamba model has excellent performance in segmentation performance.

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