Machine-Readable Semantic Vocabulary

Vocabulary

Semantic vocabulary for quantitative CT/DICOM terminology, RSIF entities and AI-readable imaging workflows.

Vocabulary pages describe semantic imaging terminology only and do not define diagnostic, clinical or treatment concepts.

Canonical Semantic Resources

context.jsonld

Canonical JSON-LD context for RSIF semantic interoperability.

GitHub Vocabulary

Public semantic vocabulary repository for imaging terminology.

Core Semantic Parameters

L1_HU

Mean trabecular attenuation within L1 ROI.

L2_HU

Mean trabecular attenuation within L2 ROI.

LIVER_HU

Mean hepatic attenuation parameter.

SPLEEN_HU

Mean splenic attenuation parameter.

ROI

Region of interest used for quantitative technical measurement.

CT Attenuation

Quantitative representation of X-ray attenuation in CT imaging.

Hounsfield Units

Measurement scale used for CT attenuation values.

RSIF

ResetRay Structured Imaging Format semantic entity.

Semantic Scope

The vocabulary layer is intended for:

  • semantic interoperability;
  • AI-readable imaging terminology;
  • structured imaging concepts;
  • machine-readable export terminology;
  • quantitative CT/DICOM semantics.

The vocabulary layer is not intended for clinical interpretation.

Canonical Related Pages

RSIF

Structured semantic format for quantitative imaging data.

Ontology

Semantic ontology layer for imaging interoperability.

Semantic Flow

DICOM → ROI → RSIF semantic workflow.

Examples

Synthetic structured RSIF example objects.

Technical Boundary

  • Not diagnosis
  • Not disease detection
  • Not treatment recommendation
  • Not clinical decision support
  • Not emergency interpretation
  • Not replacement of professional medical interpretation