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Peking Union Medical College

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Selected work

Representative Papers

CMCNet: Aligning Ultrasound Image Embeddings with Textual TI-RADS Representations for Fine-Grained Thyroid Classification

Aug 14, 2026

This study addresses the underutilization of feature-level supervision in multi-class thyroid nodule ultrasound classification by proposing CMCNet. The method employs text embeddings as stable proxy representations for risk stratification, achieving cross-modal alignment between ultrasound images and TI-RADS textual descriptions via a Center-Margin Contrastive loss to guide image-only fine-grained grading with structured features. Experimental results demonstrate that CMCNet significantly outperforms InfoNCE and multi-task baselines in data efficiency and robustness. Notably, it exhibits superior performance under class-imbalanced conditions, effectively enhancing the accuracy of nodule risk stratification.

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Latest Papers

CMCNet: Aligning Ultrasound Image Embeddings with Textual TI-RADS Representations for Fine-Grained Thyroid Classification

Aug 14, 2026

This study addresses the underutilization of feature-level supervision in multi-class thyroid nodule ultrasound classification by proposing CMCNet. The method employs text embeddings as stable proxy representations for risk stratification, achieving cross-modal alignment between ultrasound images and TI-RADS textual descriptions via a Center-Margin Contrastive loss to guide image-only fine-grained grading with structured features. Experimental results demonstrate that CMCNet significantly outperforms InfoNCE and multi-task baselines in data efficiency and robustness. Notably, it exhibits superior performance under class-imbalanced conditions, effectively enhancing the accuracy of nodule risk stratification.

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