Table 1. Description of the 2017 RSNA pediatric bone age challenge dataset

Items	Description
Imaging modality	X-rayPreferred name: digital radiographyRadLex ID: RID10351
Annotation pattern	Whole study label
Annotation methodology and structure	Method of annotation- ManualAnnotation output- Spreadsheet (alphanumeric)Storage, Portability, Interoperability- Downloadable ZIP file (RSNA website)
Imaging file/structure set format	Portable Network Graphic (PNG)
Image characteristics	Resolution- NormalizedPreprocessing- None
Labeler demographics	Scope of annotation: multi-institutional- Two pediatric radiologists from each institution clinical report