Papers › UU-Mamba: Uncertainty-aware U-Mamba for Cardiac Image Segmentation

UU-Mamba: Uncertainty-aware U-Mamba for Cardiac Image Segmentation

25 May 2024arXiv:2405.17496archive 2025-07-28

Ting Yu Tsai, Li Lin, Shu Hu, Ming-Ching Chang, Hongtu Zhu, Xin Wang

Biomedical image segmentation is critical for accurate identification and analysis of anatomical structures in medical imaging, particularly in cardiac MRI. Manual segmentation is labor-intensive, time-consuming, and prone to errors, highlighting the need for automated methods. However, current machine learning approaches face challenges like overfitting and data demands. To tackle these issues, we propose a new UU-Mamba model, integrating the U-Mamba model with the Sharpness-Aware Minimization (SAM) optimizer and an uncertainty-aware loss function. SAM enhances generalization by locating flat minima in the loss landscape, thus reducing overfitting. The uncertainty-aware loss combines region-based, distribution-based, and pixel-based loss designs to improve segmentation accuracy and robustness. Evaluation of our method is performed on the ACDC cardiac dataset, outperforming state-of-the-art models including TransUNet, Swin-Unet, nnUNet, and nnFormer. Our approach achieves Dice Similarity Coefficient (DSC) and Mean Squared Error (MSE) scores, demonstrating its effectiveness in cardiac MRI segmentation.

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Image SegmentationMRI segmentationMambaSegmentationSemantic Segmentation

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AttentionConvolutionLayer NormalizationLinear LayerMulti-Head AttentionResidual ConnectionSAMSharpness-Aware MinimizationSoftmaxnnFormer

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