X-ray
Enable an AI agent to recognise an X-ray examination, assess its readiness and completion, and identify permitted next actions from its purpose, acquisition evidence and recorded constraints.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Codex
Purpose and description
Enable an AI agent to recognise an X-ray examination, assess its readiness and completion, and identify permitted next actions from its purpose, acquisition evidence and recorded constraints.
It can be Check whether a request identifies the correct subject, target and imaging question.; Route unresolved technique, scope or radiation-protection issues to the responsible reviewer.; Compare planned views or coverage with the acquisitions actually recorded.; Associate images and exposure evidence with the correct examination and acquisition.; Flag limited images, rejected acquisitions and proposed repeats for authorised review.; Track interpretation, communication and completion against the examination's stated purpose..
Distinguishing features
Represents a requested or performed imaging activity with a subject and purpose, rather than the X-ray radiation itself.
Identifies X-rays as the acquisition mechanism, distinguishing the activity from ultrasound, magnetic resonance imaging and optical inspection.
Connects images to the acquisition that produced them, distinguishing an examination from an uncontextualised image or report.
Has an imaging or inspection objective, distinguishing it from irradiation intended to deliver treatment.
Records the acquisition technique explicitly so that projection radiography, CT and fluoroscopy are not silently treated as equivalent; their registry boundaries remain unresolved.
Scope
+ The examination's requested purpose, subject and target region or object
+ The intended X-ray imaging technique and required acquisitions
+ Readiness, authorisation and applicable radiation-protection constraints
+ The acquisition actually performed, including deviations and available exposure records
+ Image adequacy, interpretation status and examination completion
- X-ray radiation as a physical phenomenon
- The imaging equipment's construction, maintenance and calibration lifecycle
- The subject's complete clinical history or the inspected object's complete lifecycle
- Image files and reports as independently managed information artefacts
- Diagnoses, treatment plans and repair decisions arising from the examination
- Therapeutic irradiation activities
Characteristics
- Application context
- Human clinical; veterinary; industrial inspection; research; other; unresolved Determines which subject descriptions, authorities and adequacy criteria are relevant.
- Imaging subject and target
- Identified subject linked to a body region, side, component or inspection area Allows the agent to check that the requested target matches the acquired images.
- Examination objective
- Linked request stating the question the images are intended to address Provides the basis for deciding whether the examination is appropriate and sufficiently complete.
- Acquisition technique
- Projection radiography; CT; fluoroscopy; other specified X-ray technique; unresolved Identifies the relevant acquisition evidence and exposes possible scope conflicts.
- Acquisition coverage
- Named views, projections or coverage requirements with planned and acquired status Makes missing coverage and departures from the request visible.
- Exposure evidence
- Available technique settings and dose indicators, each with its original quantity name, unit, source and acquisition association Supports review without treating different dose indicators as interchangeable or inferring missing measurements.
- Examination stage
- Requested; awaiting review; ready; acquiring; acquired; awaiting interpretation; completed; deferred; cancelled Separates image acquisition from interpretation and administrative completion.
- Image adequacy
- Unassessed; adequate for stated purpose; limited; inadequate; assessor and reason required Prevents the mere presence of an image from being mistaken for a usable examination.
- Authorisation and restrictions
- Linked responsible authority, decision, applicable conditions and unresolved holds Lets the agent distinguish actions it may coordinate from actions requiring an authorised decision.
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 10 layers · 10 findings · 20 questions.
Examination intent The subject, target and question that make this a particular X-ray examination.
An agent cannot judge an examination's relevance or adequacy from the label X-ray alone.
Subject and target
Identity and localisation of what is to be imaged.
Target identification
Record the subject, intended region or component, and any required side or orientation.
- Which subject and precise body region or object component does the request identify? definition
- What evidence connects that target to the subject presented for acquisition? provenance
Imaging question
The purpose against which the examination will be assessed.
Requested evidence
Record the question the examination should address and who supplied it.
- What clinical, inspection or research question should this X-ray examination help answer? definition
- Which request or responsible person establishes that question and its relevant context? provenance
Technique and coverage The chosen imaging method and intended spatial coverage.
Different X-ray techniques and views produce different evidence and require distinct completion criteria.
Technique boundary
Identification of the actual X-ray acquisition method.
Method classification
Record the named technique and whether this registry entry owns the activity or references a neighbouring model.
- Which X-ray technique is requested, and how is it identified in the source record? definition
- Does the registry include this technique here or assign it to a separate examination model? boundary
Acquisition plan
Required views, positioning and coverage for the stated purpose.
Planned views and conditions
Record the intended acquisitions and conditions that affect how they can be obtained.
- Which named views, projections or coverage limits are required by the recorded plan? definition
- Which positioning or access limitations require the plan to be reviewed or adapted? action
Readiness and exposure controls Decisions and prerequisites governing whether acquisition may proceed.
An X-ray acquisition involves ionising radiation, so scheduling readiness alone cannot establish permission to expose.
Examination authority
The recorded decision permitting the proposed examination.
Authorised imaging purpose
Connect the proposed acquisition to its responsible reviewer and applicable decision.
- Who is responsible for authorising this examination in its application context, and where is the decision recorded? provenance
- Which unresolved conditions prevent acquisition from proceeding? action
Protection prerequisites
Context-specific checks for the subject and exposure environment.
Applicable exposure checks
Record required checks and their disposition without imposing a universal clinical or industrial checklist.
- Which subject-specific or area-control checks does the applicable procedure require before this acquisition? boundary
- What evidence shows each required check is satisfied, inapplicable or awaiting a responsible decision? provenance
Acquisition and image adequacy What was acquired and whether the resulting images serve the examination's purpose.
The planned examination, actual exposures and usable image set can differ.
Performed acquisitions
Traceability from actual acquisition events to images and exposure records.
Acquisition evidence
Record performed views, acquisition context, image links and available exposure quantities.
- Which views or coverage were actually acquired, and which images belong to each acquisition? provenance
- Which exposure settings or dose indicators were recorded, with what quantity names, units and sources? measurement
Usable image set
Purpose-specific adequacy and the disposition of deficient acquisitions.
Adequacy and repeat review
Record assessed coverage, positioning, motion or other limitations and any decision about additional acquisition.
- Who assessed whether the images answer the stated question, and what coverage or image-quality limitations were recorded? provenance
- If an acquisition is inadequate, what authorised decision records acceptance of the limitation, a repeat or another next step? action
Interpretation and completion The transition from acquired images to a documented and appropriately communicated examination outcome.
Acquisition can finish while interpretation or required follow-up communication remains outstanding.
Interpretation status
The examination's relationship to an accountable interpretation.
Interpretation linkage
Link the relevant interpretation and its status to the image set it addresses.
- Which interpretation or report addresses this image set, and who is responsible for it? provenance
- Is interpretation pending, preliminary, final or amended, and what limitations does it retain? definition
Examination disposition
Completion conditions and outstanding handoffs.
Completion and handoff
Record whether the examination has met its workflow obligations and where unresolved work is assigned.
- Which acquisition, interpretation and communication obligations must be satisfied before this examination is considered complete? definition
- What outstanding review, communication or further-imaging decision requires a handoff, and to whom? action
What the second pass must settle
- Does vr.tr.x-ray denote an examination activity, an image artefact, radiation or another concept, given that no registry definition is recorded?
- Does an existing world model already own this concept, requiring a registry link instead of a new publication?
- Does this entry cover only projection radiography, or also CT, fluoroscopy and other X-ray techniques?
- Which human clinical, veterinary, industrial or research contexts must this model support, and which require specialised models?
- Which authoritative procedures establish context-specific authorisation, exposure records, image adequacy and completion requirements?