DICOM SR uses data elements to encode a higher level abstraction that is a tree of content, where nodes of the tree and their relationships are formalized. SR-TID1500 is one of many standard templates that define constraints on the structure of the tree, and is intended for generic tasks involving image-based measurements. DICOM SR uses standard terminologies and codes to deliver structured content. These codes are used both for defining the concept names and values assigned to those concepts (name-value pairs). Measurements include coded concepts corresponding to the quantity being measured, and a numeric value accompanied by coded units. Coded categorical or qualitative values may also be present. In SR-TID1500, measurements are accompanied by additional context that helps interpret and reuse that measurement, such as finding type, location, method and derivation. Measurements computed from segmentations can reference the segmentation defining the region and the image segmented, using unique identifiers of the respective objects.