Chest X-Ray Quality Assessment Method With Medical Domain Knowledge Fusion

Abstract

Digital X-ray radiography is widely used in clinical diagnosis. High quality chest X-ray is conducive to the accurate diagnosis of diseases by clinicians. However, the quality assessment of the chest X-ray images mainly depends on the subjective evaluation of doctors, and the results are influenced by the skill level and experience of the evaluators, involving many issues such as heavy workload and various uncertain factors in such subjective judgment. In this paper, we propose a chest X-ray quality assessment method that combines image-text contrastive learning with medical domain knowledge fusion. Based on pretraining the model from contrastive text-image pairs, large-scale real clinical chest X-ray and diagnostic report text information are fused, and the model is fine-tuned to achieve cross domain transfer learning. While improving the prediction accuracy of the algorithm, the cost of massive sample data annotation is avoided. The local visual patch features of the X-ray images are aligned with multiple text features to ensure that the visual features contain more fine-grained image information. Theoretical analysis and experimental results show that the contrastive learning algorithm based on the fusion of triplet information in medical knowledge graph and chest X-ray multi-modal data has achieved good performance in terms of accuracy. In addition, the method proposed in this paper can be easily extended to complete other tasks such as medical image multi-lesion segmentation and disease progression prediction.

Keywords

• Chest X-ray
• image quality assessment
• no reference assessment
• image-text contrastive learning
• knowledge graph