EHDS Logical Information Models
0.1.0 - ci-build

EHDS Logical Information Models, published by Xt-EHR. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/Xt-EHR/xt-ehr-common/tree/stakeholder-consultation-D6-1 and changes regularly. See the Directory of published versions

## Logical Model: Imaging study model

Official URL: https://www.xt-ehr.eu/specifications/fhir/StructureDefinition/EHDSImagingStudy | Version: 0.1.0
Draft as of 2025-07-08 | Computable Name: EHDSImagingStudy

C.32 - EHDS refined base model for Imaging study

Usages:

- Use this Logical Model: Observation model

### Views of Logical Model

Description of Differentials, Snapshots and how the different presentations work.

- Differential Table
- Snapshot Table

This structure is derived from Base

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
EHDSImagingStudy |  | 0..* | Base | Imaging study model Instances of this logical model can be the target of a Reference
identifier |  | 1..* | Identifier | C.32.1 - Identifier
modality |  | 0..* | CodeableConcept | C.32.2 - Modality Binding Description: (preferred): DICOM CID029
subject |  | 1..1 | Reference(Patient model | Device model) | C.32.3 - Subject
encounter |  | 0..1 | Reference(Encounter model) | C.32.4 - Encounter
started |  | 0..1 | dateTime | C.32.5 - Started
basedOn |  | 0..* | Reference(Service request model) | C.32.6 - Based on
numberOfSeries |  | 0..1 | unsignedInt | C.32.7 - Number of series
numberOfInstances |  | 0..1 | unsignedInt | C.32.8 - Number of instances
description |  | 0..1 | string | C.32.9 - Description
studyCustodian |  | 0..1 | EHDSOrganisation | C.32.10 - Study custodian
studyEndpoint |  | 0..1 | EHDSEndpoint | C.32.11 - Study endpoint
series |  | 0..* | Base | C.32.12 - Series
seriesUid |  | 1..1 | id | C.32.12.1 - Series UID
number |  | 0..1 | unsignedInt | C.32.12.2 - Number
acquisitionModality |  | 1..1 | CodeableConcept | C.32.12.3 - Acquisition modality Binding Description: (preferred): DICOM CID029
description |  | 0..1 | string | C.32.12.4 - Description
numberOfInstances |  | 0..1 | unsignedInt | C.32.12.5 - Number of instances
seriesEndpoint |  | 0..1 | EHDSEndpoint | C.32.12.6 - Series endpoint
bodySite |  | 0..1 | CodeableConcept | C.32.12.7 - Body site Binding Description: (preferred): SNOMED CT
laterality |  | 0..1 | CodeableConcept | C.32.12.8 - Laterality Binding Description: (preferred): SNOMED CT
specimen |  | 0..* | Reference(Specimen model) | C.32.12.9 - Specimen
started |  | 0..1 | dateTime | C.32.12.10 - Started
instancesInTheSeries |  | 0..* | Base | C.32.12.11 - Instances in the series
instanceTitle |  | 0..1 | string | C.32.12.11.1 - Instance title
instanceUid |  | 1..1 | id | C.32.12.11.2 - Instance UID
sopClass |  | 1..1 | uri | C.32.12.11.3 - SOP class
instanceNumber |  | 0..1 | unsignedInt | C.32.12.11.4 - Instance number
radiationDoseInformation |  | 0..1 | Base | C.32.12.11.5 - Radiation dose information
kap |  | 0..1 | Quantity | C.32.12.11.5.1 - KAP
totalKerma |  | 0..1 | Quantity | C.32.12.11.5.2 - Total Kerma
endTubeKerma |  | 0..1 | Quantity | C.32.12.11.5.3 - End tube Kerma
breastThickness |  | 0..1 | Quantity | C.32.12.11.5.4 - Breast thickness
abd |  | 0..1 | Quantity | C.32.12.11.5.5 - 2ABD
phase |  | 0..1 | Base | C.32.13 - Phase
phaseCode |  | 1..1 | CodeableConcept | C.32.13.1 - Phase code Binding Description: (preferred): SNOMED CT
radiationDose |  | 0..1 | Quantity | C.32.13.2 - Radiation dose
Documentation for this format

#### Terminology Bindings (Differential)

Path | Conformance | ValueSet | URI
EHDSImagingStudy.modality | preferred |
EHDSImagingStudy.series.acquisitionModality | preferred |
EHDSImagingStudy.series.bodySite | preferred |
EHDSImagingStudy.series.laterality | preferred |
EHDSImagingStudy.phase.phaseCode | preferred |

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
EHDSImagingStudy |  | 0..* | Base | Imaging study model Instances of this logical model can be the target of a Reference
identifier |  | 1..* | Identifier | C.32.1 - Identifier
modality |  | 0..* | CodeableConcept | C.32.2 - Modality Binding Description: (preferred): DICOM CID029
subject |  | 1..1 | Reference(Patient model | Device model) | C.32.3 - Subject
encounter |  | 0..1 | Reference(Encounter model) | C.32.4 - Encounter
started |  | 0..1 | dateTime | C.32.5 - Started
basedOn |  | 0..* | Reference(Service request model) | C.32.6 - Based on
numberOfSeries |  | 0..1 | unsignedInt | C.32.7 - Number of series
numberOfInstances |  | 0..1 | unsignedInt | C.32.8 - Number of instances
description |  | 0..1 | string | C.32.9 - Description
studyCustodian |  | 0..1 | EHDSOrganisation | C.32.10 - Study custodian
studyEndpoint |  | 0..1 | EHDSEndpoint | C.32.11 - Study endpoint
series |  | 0..* | Base | C.32.12 - Series
seriesUid |  | 1..1 | id | C.32.12.1 - Series UID
number |  | 0..1 | unsignedInt | C.32.12.2 - Number
acquisitionModality |  | 1..1 | CodeableConcept | C.32.12.3 - Acquisition modality Binding Description: (preferred): DICOM CID029
description |  | 0..1 | string | C.32.12.4 - Description
numberOfInstances |  | 0..1 | unsignedInt | C.32.12.5 - Number of instances
seriesEndpoint |  | 0..1 | EHDSEndpoint | C.32.12.6 - Series endpoint
bodySite |  | 0..1 | CodeableConcept | C.32.12.7 - Body site Binding Description: (preferred): SNOMED CT
laterality |  | 0..1 | CodeableConcept | C.32.12.8 - Laterality Binding Description: (preferred): SNOMED CT
specimen |  | 0..* | Reference(Specimen model) | C.32.12.9 - Specimen
started |  | 0..1 | dateTime | C.32.12.10 - Started
instancesInTheSeries |  | 0..* | Base | C.32.12.11 - Instances in the series
instanceTitle |  | 0..1 | string | C.32.12.11.1 - Instance title
instanceUid |  | 1..1 | id | C.32.12.11.2 - Instance UID
sopClass |  | 1..1 | uri | C.32.12.11.3 - SOP class
instanceNumber |  | 0..1 | unsignedInt | C.32.12.11.4 - Instance number
radiationDoseInformation |  | 0..1 | Base | C.32.12.11.5 - Radiation dose information
kap |  | 0..1 | Quantity | C.32.12.11.5.1 - KAP
totalKerma |  | 0..1 | Quantity | C.32.12.11.5.2 - Total Kerma
endTubeKerma |  | 0..1 | Quantity | C.32.12.11.5.3 - End tube Kerma
breastThickness |  | 0..1 | Quantity | C.32.12.11.5.4 - Breast thickness
abd |  | 0..1 | Quantity | C.32.12.11.5.5 - 2ABD
phase |  | 0..1 | Base | C.32.13 - Phase
phaseCode |  | 1..1 | CodeableConcept | C.32.13.1 - Phase code Binding Description: (preferred): SNOMED CT
radiationDose |  | 0..1 | Quantity | C.32.13.2 - Radiation dose
Documentation for this format

#### Terminology Bindings

Path | Conformance | ValueSet | URI
EHDSImagingStudy.modality | preferred |
EHDSImagingStudy.series.acquisitionModality | preferred |
EHDSImagingStudy.series.bodySite | preferred |
EHDSImagingStudy.series.laterality | preferred |
EHDSImagingStudy.phase.phaseCode | preferred |

Other representations of model: CSV, Excel