FHIR Osiris Implementation Guide
1.1.0 - trial-implementation

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## Extension: Connection with the imaging module

Official URL: https://ig-osiris.cancer.fr/ig/osiris/StructureDefinition/basedOn | Version: 1.1.0
Draft as of 2025-04-03 | Computable Name: BasedOn

Connection with the imaging module (ImagingStudy and ROI Segmentation)

Context of Use

This extension may be used on the following element(s):

- Element ID: `Element`

Usage info

Usage:

- Use this Extension: Radiotherapy Plan
- Examples for this Extension: Procedure/fhir-osiris-example-RadiotherapyPlan-1

### Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

- Differential Table
- Snapshot Table
- Statistics/References
- All

This structure is derived from Extension

Nom | Drapeaux | Card. | Type | Description et contraintes
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Connection with the imaging module
Slices pour extension |  |  |  | Content/Rules for all slices
extension:imagingStudyRef | S | 0..1 | Extension | Imaging Study Reference
extension |  | 0..0 |  |
url |  | 1..1 | uri | "imagingStudyRef"
value[x] |  | 0..1 | Reference(Imaging Study) | Value of extension
extension:seriesUID | S | 0..1 | Extension | UID Image
extension |  | 0..0 |  |
url |  | 1..1 | uri | "seriesUID"
value[x] |  | 0..1 | string | Value of extension
extension:rtStructUID | S | 0..1 | Extension | UID RT Structure Set
extension |  | 0..0 |  |
url |  | 1..1 | uri | "rtStructUID"
value[x] |  | 0..1 | Reference(ROI segmentation) | Value of extension
url |  | 1..1 | uri | "https://ig-osiris.cancer.fr/ig/osiris/StructureDefinition/basedOn"
value[x] |  | 0..0 |  |
Documentation for this format

Nom | Drapeaux | Card. | Type | Description et contraintes
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Connection with the imaging module
id |  | 0..1 | string | Unique id for inter-element referencing
Slices pour extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
extension:imagingStudyRef | S | 0..1 | Extension | Imaging Study Reference
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "imagingStudyRef"
value[x] |  | 0..1 | Reference(Imaging Study) | Value of extension
extension:seriesUID | S | 0..1 | Extension | UID Image
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "seriesUID"
value[x] |  | 0..1 | string | Value of extension
extension:rtStructUID | S | 0..1 | Extension | UID RT Structure Set
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "rtStructUID"
value[x] |  | 0..1 | Reference(ROI segmentation) | Value of extension
url |  | 1..1 | uri | "https://ig-osiris.cancer.fr/ig/osiris/StructureDefinition/basedOn"
Documentation for this format

This structure is derived from Extension

Résumé

Complex Extension: Connection with the imaging module (ImagingStudy and ROI Segmentation)

- imagingStudyRef: Reference: Imaging Study to which the reference series (UID series) belong
- seriesUID: string: Series Instance UID of the planning image. Dicom Tag (0020,000E)
- rtStructUID: Reference: SOP reference Instance UID of RT Structure Set. Dicom Tag (0008,1155)

Differential View

This structure is derived from Extension

Nom | Drapeaux | Card. | Type | Description et contraintes
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Connection with the imaging module
Slices pour extension |  |  |  | Content/Rules for all slices
extension:imagingStudyRef | S | 0..1 | Extension | Imaging Study Reference
extension |  | 0..0 |  |
url |  | 1..1 | uri | "imagingStudyRef"
value[x] |  | 0..1 | Reference(Imaging Study) | Value of extension
extension:seriesUID | S | 0..1 | Extension | UID Image
extension |  | 0..0 |  |
url |  | 1..1 | uri | "seriesUID"
value[x] |  | 0..1 | string | Value of extension
extension:rtStructUID | S | 0..1 | Extension | UID RT Structure Set
extension |  | 0..0 |  |
url |  | 1..1 | uri | "rtStructUID"
value[x] |  | 0..1 | Reference(ROI segmentation) | Value of extension
url |  | 1..1 | uri | "https://ig-osiris.cancer.fr/ig/osiris/StructureDefinition/basedOn"
value[x] |  | 0..0 |  |
Documentation for this format

Snapshot View

Nom | Drapeaux | Card. | Type | Description et contraintes
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Connection with the imaging module
id |  | 0..1 | string | Unique id for inter-element referencing
Slices pour extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
extension:imagingStudyRef | S | 0..1 | Extension | Imaging Study Reference
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "imagingStudyRef"
value[x] |  | 0..1 | Reference(Imaging Study) | Value of extension
extension:seriesUID | S | 0..1 | Extension | UID Image
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "seriesUID"
value[x] |  | 0..1 | string | Value of extension
extension:rtStructUID | S | 0..1 | Extension | UID RT Structure Set
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "rtStructUID"
value[x] |  | 0..1 | Reference(ROI segmentation) | Value of extension
url |  | 1..1 | uri | "https://ig-osiris.cancer.fr/ig/osiris/StructureDefinition/basedOn"
Documentation for this format

This structure is derived from Extension

Résumé

Complex Extension: Connection with the imaging module (ImagingStudy and ROI Segmentation)

- imagingStudyRef: Reference: Imaging Study to which the reference series (UID series) belong
- seriesUID: string: Series Instance UID of the planning image. Dicom Tag (0020,000E)
- rtStructUID: Reference: SOP reference Instance UID of RT Structure Set. Dicom Tag (0008,1155)

Other representations of profile: CSV, Excel, Schematron