ISO/TS 23541-1:2021 pdf download – Health informatics — Categorial structure for representation of 3D human body position system — Part 1: Bones.
3.1.2 3D data element unit of 3D data for which the definition, identification, representation, and permissible values are specified by means of a set of attributes Note 1 to entry: A 3D data element include vertex (a single point that has three-dimensional position and corner of a 3D model), edge (where two faces meet), face (surface of 3D model defined by vertices and edges) and polygon (straight-sided shapes, defined by vertices and edges). Note 2 to entry: See Figure 2. 3.1.3 human anatomy study of structures in the human body and how the body parts are organized, physical substance of the human organism Note 1 to entry: Human anatomy is composed of living cells and extracellular materials and organized into tissues, organs and systems. 3.1.4 anatomical site formal representation of a sanctioned characteristic composed of the semantic link {HasAnatomicalSite} with an associative relation to the characterizing category including but not limited to <Anatomical structure> [SOURCE: ISO/TS 22789:2010, 3.2.1] 3.1.5 terminology structured, human and machine-readable representation of concepts 3.1.6 concept unit of knowledge created by a unique combination of characteristics [SOURCE: ISO 1087:2019, 3.2.7, modified — Notes to entry removed.] 3.1.7 clinical terminology terminology describing health conditions and healthcare activities
3.2.3 3D site model 3D model (3.2.1) that represents anatomical sites (3.1.4) Note 1 to entry: It is used to annotate clinical concepts, such as disorder, symptom and finding. It describes the location, size, shape and volume of anatomical areas in which health professionals are interested. 3.2.4 virtual medical entity entity that represents a medical concept in virtual space Note 1 to entry: A virtual medical entity is composed of a 3D model and a descriptive entity. The medical concept (3.1.6) can be pre-coordinated, i.e. predefined within a formal (concept representation) system, with an equivalent single unique concept identifier, or post-coordinated, i.e. represented using more than one concept from one or many compositional systems, combined using mechanisms within or outside the compositional systems, with a corresponding 3D model. 3.2.5 virtual body part medical entity (3.2.4) that constitutes part of a human body in virtual space Note 1 to entry: It represents body structure or normal anatomy part in virtual space EXAMPLE Virtual Body Part “L3 Vertebra” (see Figure 4).