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1 Definition 2 Functional Requirements 3 Syntax 4 Semantics 5    Conformance Testing 6     Performance Assessment

1 Definition

Medical Imaging Object represents spatially organised visual representations of anatomical or functional structures and is intended to support AI‑based analysis, interpretation, and fusion with other health data types. It references Medical Imaging Qualifier.

2 Functional Requirements

A Medical Imaging Object shall enable:

  • Representation of medical image data independent of acquisition device vendor.
  • Support for single images, image series, and volumetric datasets.
  • Association of image data with acquisition time and modality.
  • Integration with AI‑based image analysis and inference pipelines.
  • Interoperability with non‑imaging health data (e.g. physiological or genomic data).

A Medical Imaging Object shall be:

  • Modality‑agnostic.
  • Compatible with both 2D and 3D image data.
  • Suitable for offline and real‑time AI processing.

3 Syntax

https://schemas.mpai.community/AIH1/V1.0/data/MedicalImagingObject.json

4 Semantics

Label Description
Header Medical Imaging Object Header – Standard “TFA‑MIO‑Vx.y”.
MedicalImagingObjectID Identifier of the Medical Imaging data instance.
MedicalImagingObjectTime Time of image acquisition.
ImagingModality Imaging modality (e.g. CT, MRI, X‑ray, Ultrasound, PET).
MedicalImagingObjectData Image data payload (single image, image series, or volume).
SpatialMetadata Information describing spatial resolution, orientation, and scale.
MedicalImagingQualifier Qualifier describing image encoding, format, and interpretation constraints.
DataXMData Information about this Medical Imaging Object Instance.
DescrMetadata Descriptive metadata.

5     Conformance Testing

A Data instance Conforms with Medical Imaging Object (AIH-MIO) if:

  1.  Its JSON Object validates against its JSON Schema.
  2. Any included  JSON Object validates against its JSON Schema.
  3. All Data in the JSON Object:
    1. Have the specified Data Types.
    2. Conform with the Qualifiers signaled in their JSON Schemas.

6     Performance Assessment

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