Medical Image Segmentation
Overview
Medical image segmentation assigns labels to pixels or voxels to outline structures such as tumors, organs, vessels, and surgical instruments, enabling quantitative analysis and clinical workflows. Common approaches include U-Net-style convolutional networks, transformers and state-space models, and promptable foundation models; work also uses anatomical and topological priors, text guidance, and generative models. To reduce reliance on dense expert labels, researchers study self-supervised pretraining, semi- and weakly supervised learning, synthetic data, and interactive annotation, while domain adaptation addresses differences across scanners, hospitals, and modalities. A central challenge is making models reliable beyond their training data: high overlap scores can conceal boundary, connectivity, small-lesion, or subgroup failures, so external validation, uncertainty estimates, and clinically relevant metrics remain important.
Latest papers
788 papers62 papers in the last four weeks, down 29% on the four weeks before. 0.4% of all new papers.
Topology-Driven Transferability Estimation of Medical Foundation Models for Segmentation
SegMate: Asymmetric Attention-Based Lightweight Architecture for Efficient Multi-Organ Segmentation
BiM-GeoAttn-Net: Linear-Time Depth Modeling with Geometry-Aware Attention for 3D Aortic Dissection CTA Segmentation
SegReg: Latent Space Regularization for Improved Medical Image Segmentation
SGDC: Structurally-Guided Dynamic Convolution for Medical Image Segmentation
SpectralMamba-UNet: Frequency-Disentangled State Space Modeling for Texture-Structure Consistent Medical Image Segmentation
Optimizing Neural Network Architecture for Medical Image Segmentation Using Monte Carlo Tree Search
BiCLIP: Bidirectional and Consistent Language-Image Processing for Robust Medical Image Segmentation
Understanding Annotation Error Propagation and Learning an Adaptive Policy for Expert Intervention in Barrett's Video Segmentation
Innovative Tooth Segmentation Using Hierarchical Features and Bidirectional Sequence Modeling
VasGuideNet: Vascular Topology-Guided Couinaud Liver Segmentation with Structural Contrastive Loss
Adversarial Robustness of Deep Learning-Based Thyroid Nodule Segmentation in Ultrasound
Mask-HybridGNet: Graph-based segmentation with emergent anatomical correspondence from pixel-level supervision
Multimodal MRI Report Findings Supervised Brain Lesion Segmentation with Substructures
mild,'' possible''). Classical RSuper losses (e.g., sum volume consistency) can over-constrain or hallucinate unreported findings under such incompleteness, and are unable to utilize these hierarchical findings or exploit the priors of varied lesion types in a merged dataset. We explicitly parse the global quantitative and modality-wise qualitative findings and introduce a unified, one-sided, uncertainty-aware formulation (MS-RSuper) that: (i) aligns modality-specific qualitative cues (e.g., T1c enhancement, FLAIR edema) with their corresponding substructures using existence and absence losses; (ii) enforces one-sided lower-bounds for partial quantitative cues (e.g., largest lesion size, minimal multiplicity); and (iii) adds extra- vs. intra-axial anatomical priors to respect cohort differences. Certainty tokens scale penalties; missing cues are down-weighted. On 1238 report-labeled BraTS-MET/MEN scans, our MS-RSuper largely outperforms both a sparsely-supervised baseline and a naive RSuper method.