Skeleton-Guided Diffusion Model for Accurate Foot X-ray Synthesis in Hallux Valgus Diagnosis

• URL: http://arxiv.org/abs/2505.08247v1
• Date: Tue, 13 May 2025 05:57:15 GMT
• Title: Skeleton-Guided Diffusion Model for Accurate Foot X-ray Synthesis in Hallux Valgus Diagnosis
• Authors: Midi Wan, Pengfei Li, Yizhuo Liang, Di Wu, Yushan Pan, Guangzhen Zhu, Hao Wang,
• Abstract summary: Hallux valgus, which affects approximately 19% of the global population, requires frequent weight-bearing X-rays for assessment.<n>Existing X-ray models often struggle to balance image fidelity, skeletal consistency, and physical constraints.<n>We propose the Skeletal-Constrained Conditional Diffusion Model ( SCCDM) and introduce KCC, a foot evaluation method utilizing skeletal landmarks.
• Score: 12.427745726658461
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Medical image synthesis plays a crucial role in providing anatomically accurate images for diagnosis and treatment. Hallux valgus, which affects approximately 19% of the global population, requires frequent weight-bearing X-rays for assessment, placing additional strain on both patients and healthcare providers. Existing X-ray models often struggle to balance image fidelity, skeletal consistency, and physical constraints, particularly in diffusion-based methods that lack skeletal guidance. We propose the Skeletal-Constrained Conditional Diffusion Model (SCCDM) and introduce KCC, a foot evaluation method utilizing skeletal landmarks. SCCDM incorporates multi-scale feature extraction and attention mechanisms, improving the Structural Similarity Index (SSIM) by 5.72% (0.794) and Peak Signal-to-Noise Ratio (PSNR) by 18.34% (21.40 dB). When combined with KCC, the model achieves an average score of 0.85, demonstrating strong clinical applicability. The code is available at https://github.com/midisec/SCCDM.

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