Neonatology · 2026
Deep Learning-Based Classification for Grading of Respiratory Distress Syndrome on Neonatal Chest Radiographs.
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Lee Seung-Hak, Jung Sumin, Lee Eun Hee, Heo Ju Sun, Choi Byung Min
Аннотация
INTRODUCTION: The aim of this study was to develop and validate a deep learning-based multi-class classification model for automated grading of respiratory distress syndrome (RDS) severity on neonatal chest radiographs.
METHODS: A total of 23,210 radiographs, including normal and RDS cases, manually annotated by trained neonatologists, were divided into training, validation, and external test sets using patient-level splitting. Lung regions were segmented using UNet++, and RDS severity was classified into five ordered grades using a ResNet-50-based model.
RESULTS: The model achieved a quadratic weighted kappa of 0.696, with 85.7% of predictions within one grade and five-class accuracy of 0.575. AUROCs were 0.966 for detecting RDS and 0.866 for clinically significant RDS (grade ≥3). Gradient-weighted Class Activation Mapping demonstrated attention to lung regions with reduced aeration and granular opacities in severe RDS.
CONCLUSIONS: This model may provide objective and interpretable radiographic assessment of RDS severity and support more consistent radiographic evaluation in neonatal intensive care units.
METHODS: A total of 23,210 radiographs, including normal and RDS cases, manually annotated by trained neonatologists, were divided into training, validation, and external test sets using patient-level splitting. Lung regions were segmented using UNet++, and RDS severity was classified into five ordered grades using a ResNet-50-based model.
RESULTS: The model achieved a quadratic weighted kappa of 0.696, with 85.7% of predictions within one grade and five-class accuracy of 0.575. AUROCs were 0.966 for detecting RDS and 0.866 for clinically significant RDS (grade ≥3). Gradient-weighted Class Activation Mapping demonstrated attention to lung regions with reduced aeration and granular opacities in severe RDS.
CONCLUSIONS: This model may provide objective and interpretable radiographic assessment of RDS severity and support more consistent radiographic evaluation in neonatal intensive care units.