rtstruct_index_schema.json

{
  "table_description": "This table contains one row per DICOM RT Structure Set (RTSTRUCT) SeriesInstanceUID available from IDC, and captures key metadata about the structure set including the number of ROIs, ROI names, generation algorithms, interpreted types, and the referenced image series. Note: multi-valued columns (ROINames, ROIGenerationAlgorithms, RTROIInterpretedTypes) are aggregated with DISTINCT independently, so positional correspondence between columns is not preserved.",
  "columns": [
    {
      "name": "SeriesInstanceUID",
      "type": "STRING",
      "mode": "NULLABLE",
      "description": "DICOM SeriesInstanceUID identifier of the RT Structure Set series"
    },
    {
      "name": "total_rois",
      "type": "INTEGER",
      "mode": "NULLABLE",
      "description": "Number of ROIs in the structure set obtained by counting distinct DICOM ROINumber values in the StructureSetROISequence"
    },
    {
      "name": "ROINames",
      "type": "STRING",
      "mode": "REPEATED",
      "description": "Array of distinct ROI names from DICOM ROIName attribute in StructureSetROISequence, e.g., [\"GTV\", \"Heart\", \"Liver\", \"PTV\"]"
    },
    {
      "name": "ROIGenerationAlgorithms",
      "type": "STRING",
      "mode": "REPEATED",
      "description": "Array of distinct ROI generation algorithms from DICOM ROIGenerationAlgorithm attribute in StructureSetROISequence, e.g., [\"AUTOMATIC\", \"MANUAL\", \"SEMIAUTOMATIC\"]"
    },
    {
      "name": "RTROIInterpretedTypes",
      "type": "STRING",
      "mode": "REPEATED",
      "description": "Array of distinct ROI interpreted types from DICOM RTROIInterpretedType attribute in RTROIObservationsSequence, e.g., [\"GTV\", \"ORGAN\", \"PTV\"]"
    },
    {
      "name": "referenced_SeriesInstanceUID",
      "type": "STRING",
      "mode": "NULLABLE",
      "description": "SeriesInstanceUID of the referenced image series that the structure set applies to, extracted from DICOM ReferencedFrameOfReferenceSequence > RTReferencedStudySequence > RTReferencedSeriesSequence"
    }
  ]
}