ArticleBMC medical imaging2026
Application of deep learning strategies in the standardization and diagnostic efficiency enhancement of chest X-ray imaging.
Article in BMC medical imaging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionThis study aimed to develop a deep learning-based system to automatically assess patient positioning compliance in chest radiographs, focusing on cervical spine visibility, scapular overlap, and costophrenic angle completeness, to improve image quality and diagnostic accuracy.
methodsA total of 3663 de-identified posterior-anterior chest X-rays were collected and annotated for cervical spine, scapulae, and costophrenic angles. Compliance criteria included visibility of at least three cervical vertebrae, non-overlapping scapulae, and fully visible costophrenic angles. A hybrid deep learning framework combining Faster R-CNN for region localization and ResNet-50 for compliance classification was employed. Progressive training and data augmentation addressed class imbalance, and model performance was evaluated using accuracy, sensitivity, specificity, Intersection over Union (IoU), and Y-axis IoU (Y-IoU).
resultsCervical spine compliance was identified with 94.54% accuracy, 96.47% sensitivity, and 91.24% specificity. Costophrenic angle assessment achieved 98.06% accuracy, 98.28% sensitivity, and 95.24% specificity, with validation on additional datasets yielding 98.91% accuracy. Scapulae localization succeeded in 99.38% of images, and compliance classification reached 92.10% (left) and 92.38% (right) accuracy, with errors mainly due to patient positioning or slight scapula-lung overlap.
conclusionsThe proposed deep learning system provides objective, reproducible evaluation of chest X-ray positioning, enhancing image quality and reducing observer variability. Integration into clinical workflows could support radiographers in achieving standardized radiographs, improving diagnostic reliability and patient care. IMPLICATIONS FOR PRACTICE: The AI system developed in this study helps standardize and improve the quality of chest X-ray imaging procedures, reduces errors from manual interpretation, enhances diagnostic accuracy, and serves as an important tool for clinical quality control and professional development of radiologic technologists. It also has the potential for future implementation in multi-center clinical practice.
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