Imaging
RadGraph2: Tracking Findings Over Time in Radiology Reports
RadGraph2 is a dataset of 800 chest radiology reports annotated using a fine-grained entity-relationship schema, which is an expanded version of the previously introduced RadGraph dataset. RadGraph2, focuses on capturing changes in disease state and device placement over time. It introduces a hierarchical schema that organizes entities based on their relationships and show that using this hierarchy during training improves the performance of an information extraction model. In addition to the dataset of manually labeled reports, we release more than 220,000 reports automatically annotated by our benchmark model. This model achieved an F1 micro performance of 0.88 and 0.74 on two differently sourced withheld test sets (from MIMIC-CXR-JPG and CheXpert, respectively).
Related publication: RadGraph2: Modeling Disease Progression in Radiology Reports via Hierarchical Information Extraction. et al. Proceedings of the 8th Machine Learning for Healthcare Conference, PMLR 219:381-402, 2023.