{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T02:51:47Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 3, "engine": "claude", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T10:00:00Z", "ingestedAt": "2026-10-06T07:12:33+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-06T19:51:54+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q161238", "registryId": "vr.tr.magnetic-resonance-imaging", "name": "magnetic resonance imaging", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "ACT.ACT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q161238/", "model": { "registry_id": "vr.tr.magnetic-resonance-imaging", "name": "magnetic resonance imaging", "purpose": "Let an agent explain how MRI works and what it shows, relay its main techniques and safety rules from radiological sources, describe functional MRI and research uses, and route personal questions about scans to clinicians.", "definition": "A medical imaging technique that uses strong magnetic fields, magnetic field gradients and radio waves to produce detailed images of organs and tissues without ionising radiation, based on nuclear magnetic resonance of hydrogen nuclei, with specialised forms such as magnetic resonance angiography of vessels, cardiac MRI, magnetic resonance myelography of the spinal canal, and functional MRI including event-related and resting-state fMRI that map brain activity through blood oxygenation; MRI is central to neurology, oncology, musculoskeletal and cardiac diagnosis.", "what_it_is_for": "Imaging the body without ionising radiation.", "affordances": [ "explain physics and images", "relay techniques", "relay safety rules", "route personal questions" ], "distinguishing_features": [ "No ionising radiation", "Soft tissue contrast", "Multiple contrasts and sequences", "Functional imaging" ], "appearance": "A large tube-shaped scanner producing greyscale cross-sectional images.", "visual_identification": [ "Imaging by nuclear magnetic resonance", "Structural MRI, MRA, cardiac MRI, MR myelography, fMRI including event-related and resting-state", "CT uses X-rays; ultrasound uses sound; PET uses radiotracers" ], "physical_properties": [ { "quantity": "clinical field strength", "typical_range": "1.5 or 3", "unit": "tesla", "note": "typical" }, { "quantity": "first human MRI", "typical_range": "1977", "unit": "year", "note": "" }, { "quantity": "scan duration", "typical_range": "about 15-60", "unit": "minutes", "note": "" } ], "families_and_kinds": [ "structural MRI with T1, T2 and other contrasts", "magnetic resonance angiography", "cardiac magnetic resonance", "magnetic resonance myelography and spine imaging", "diffusion and perfusion MRI", "functional MRI: task-based, event-related and resting-state", "MR spectroscopy" ], "related_models": [ { "relation": "is a kind of", "target": "medical imaging", "why": "in registry terms" }, { "relation": "is a kind of", "target": "non-invasive imaging", "why": "in registry terms" }, { "relation": "is based on", "target": "nuclear magnetic resonance", "why": "of hydrogen nuclei" }, { "relation": "is contrasted with", "target": "computed tomography", "why": "which uses X-rays" } ], "identifiers": [ { "scheme": "MeSH", "value_or_pattern": "D008279", "note": "magnetic resonance imaging" } ], "standards_and_regulation": [ "MR safety standards such as IEC 60601-2-33", "Medical device regulation of scanners and contrast agents", "Radiology appropriateness criteria" ], "failure_modes_and_hazards": [ "Ferromagnetic projectile and implant hazards", "Gadolinium contrast concerns", "Agents interpreting personal scans", "Overinterpretation of fMRI findings" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Explain how magnetic resonance imaging works and what its specialised forms show.", "Help a patient prepare for a scan by relaying the clinic's own safety questionnaire and instructions.", "Support radiologists with reference information at their request." ], "must_not": [ "Report or interpret a scan as a diagnosis in place of a radiologist.", "Clear a person or an object for entry into the scanner room.", "Dismiss implant, metal or pregnancy screening questions as formalities.", "Share or publish scan images or reports without the patient's consent, since images can identify them." ], "requires_human": [ "Any scanner safety clearance for a person, implant or equipment.", "Any decision about scanning, contrast agents or reporting for a patient." ] }, "ethics": { "considerations": [ "The magnet is always on, and unscreened metal has killed and injured people in scanner rooms.", "Scans are identifiable health data, and head images can reconstruct a person's face." ], "affected_parties": [ "Patients", "Radiography staff and anyone entering the room", "People whose images are shared" ] }, "owners": { "steward": "The clinic or hospital that operates the scanner; the treating clinician answers for its use.", "master_systems": [ "Hospital imaging and radiology records" ] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q161238: magnetic resonance imaging", "url": "https://www.wikidata.org/wiki/Q161238", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Magnetic resonance imaging", "url": "https://en.wikipedia.org/wiki/Magnetic_resonance_imaging", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What MRI is.", "rationale": "Science.", "layers": [ { "id": "physics", "name": "Physics", "description": "Physics.", "findings": [ { "id": "physics-finding", "name": "Physics", "description": "Physics.", "questions": [ { "text": "How does MRI use magnetic fields, gradients and radio waves to form images?", "kind": "definition" }, { "text": "Is the question about MRI, CT, ultrasound or PET?", "kind": "boundary" } ] } ] }, { "id": "techniques", "name": "Techniques", "description": "Techniques.", "findings": [ { "id": "techniques-finding", "name": "Techniques", "description": "Techniques.", "questions": [ { "text": "What are MRA, cardiac MRI, MR myelography, diffusion imaging and fMRI, and what does each show?", "kind": "definition" }, { "text": "Which entry fits the specific technique?", "kind": "action" } ] } ] } ] }, { "id": "clinical", "name": "Clinical", "description": "Clinical use.", "rationale": "Clinical.", "layers": [ { "id": "uses", "name": "Uses", "description": "Uses.", "findings": [ { "id": "uses-finding", "name": "Uses", "description": "Uses.", "questions": [ { "text": "When is MRI used in neurology, oncology, cardiology and musculoskeletal medicine, in general terms?", "kind": "provenance" }, { "text": "Is the user asking about their own scan or results, which needs their clinician?", "kind": "boundary" } ] } ] }, { "id": "experience", "name": "Experience", "description": "Having a scan.", "findings": [ { "id": "experience-finding", "name": "Experience", "description": "Experience.", "questions": [ { "text": "What happens during a scan, and how are contrast agents used?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] } ] }, { "id": "safety", "name": "Safety", "description": "Safety.", "rationale": "Regulation.", "layers": [ { "id": "safety", "name": "Safety", "description": "Safety rules.", "findings": [ { "id": "safety-finding", "name": "Safety", "description": "Safety.", "questions": [ { "text": "What safety rules apply for implants, metal objects and pregnancy?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] }, { "id": "contrast", "name": "Contrast", "description": "Contrast agents.", "findings": [ { "id": "contrast-finding", "name": "Contrast", "description": "Contrast.", "questions": [ { "text": "What are gadolinium contrast agents, and what concerns exist, with attribution?", "kind": "provenance" }, { "text": "Which entry fits MRI contrast agent?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Research and history.", "rationale": "Context.", "layers": [ { "id": "research", "name": "Research", "description": "fMRI research.", "findings": [ { "id": "research-finding", "name": "Research", "description": "Research.", "questions": [ { "text": "How do event-related and resting-state fMRI map brain function, and what are their limits, with attribution?", "kind": "provenance" }, { "text": "Which entry fits functional MRI?", "kind": "action" } ] } ] }, { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How was MRI developed by Lauterbur, Mansfield, Damadian and others?", "kind": "provenance" }, { "text": "Which entry fits the history of MRI?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should functional MRI and MRA be separate primary entries?", "How should radiological references be linked?", "The registry entry has merged aliases naming techniques; should they be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }