{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T10:05:57Z", "providers": [ "Codex" ], "breadth": "recalled by Codex without web access - no source was read", "missingProviders": [], "pass": 2, "cost": { "grok": { "seconds": 18.8, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a09513-79da-7f40-a616-68c177baf638\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: great cardiac vein\nSense to describe: (none recorded)\nDomain code: PHY.LIV\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 043: 1", "usd": 0.0, "recall": true }, "codex": { "seconds": 80.9, "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a09513-79e4-71f3-a4be-df4d6c5786ac\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: great cardiac vein\nRegistry id: vr.tr.great-cardiac-vein\nPlane / domain: PHY / PHY.LIV\nRegistry definition: (none recorded)\nNames folded into this en" } }, "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T12:00:00Z", "ingestedAt": "2026-10-06T08:50:16+00:00", "fields": [ "agent_conduct", "ethics", "failure_modes_and_hazards", "owners", "standards_and_regulation", "visual_identification" ] }, "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:29+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q2886255", "registryId": "vr.tr.great-cardiac-vein", "name": "great cardiac vein", "version": "0.1.0-research.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.LIV" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q2886255/", "model": { "registry_id": "vr.tr.great-cardiac-vein", "name": "great cardiac vein", "purpose": "Enable an agent to recognise the great cardiac vein, record its individual anatomy and condition, and assess the evidence needed for observation or procedural planning.", "definition": "The great cardiac vein is a major vein of the heart that ascends in the anterior interventricular groove, turns into the left atrioventricular groove, and drains into the coronary sinus, collecting venous blood from substantial portions of the left ventricle and adjacent myocardium.", "scope_statement": "This model owns the anatomical identity, course, connections, drainage, observed condition and procedural relationships of the great cardiac vein under vr.tr.great-cardiac-vein in PHY / PHY.LIV; human anatomy is the working scope, with species explicitly recorded for other specimens.", "in_scope": [ "Identification and naming of the great cardiac vein and its constituent segments", "Course through the anterior interventricular and left atrioventricular regions", "Tributaries, drainage connections and transition to the coronary sinus", "Segment-specific dimensions, patency and flow observations", "Anatomical variations and relationships relevant to imaging or instrumentation" ], "out_of_scope": [ "The heart, organism or species as a whole", "Complete models of the coronary sinus and other cardiac veins", "Coronary arteries except their spatial relationships to this vein", "Disease diagnosis and treatment protocols", "Catheter, pacing lead and imaging-device specifications", "Independent registry entries for segments without an authorised granularity change" ], "distinguishing_features": [ "Identify the vessel by its connected course from the anterior interventricular region into the left atrioventricular region; location in a single image is insufficient. Anatomical variation is documented in [The great cardiac vein](https://pubmed.ncbi.nlm.nih.gov/1589843/).", "Distinguish it from neighbouring coronary arteries by tracing venous continuity and drainage, rather than assuming a fixed position above or below the arteries; crossing relationships vary. See [The anatomy of the coronary sinus and its tributaries](https://pubmed.ncbi.nlm.nih.gov/11370136/).", "Distinguish it from the coronary sinus by declaring the anatomical landmark and naming convention used at their transition.", "Treat 'anterior interventricular vein' as a terminology boundary requiring explicit mapping: imaging literature may label it separately from the great cardiac vein. See [Assessment of the coronary venous system using 256-slice computed tomography](https://pubmed.ncbi.nlm.nih.gov/25089900/).", "Require continuity with the identified great cardiac vein before assigning an adjacent tributary or an apical communicating vessel to this structure." ], "characteristics": [ { "name": "Anatomical subject", "kind": "relation", "unit_or_values": "Individual or specimen identifier, species and associated heart", "why_it_matters": "Separates a particular vessel from general anatomical descriptions and prevents unmarked transfer between species." }, { "name": "Segment naming convention", "kind": "category", "unit_or_values": "Anterior interventricular segment included, separately labelled, or unresolved; cited terminology authority", "why_it_matters": "Makes lengths, findings and annotations comparable despite naming differences." }, { "name": "Observed course", "kind": "relation", "unit_or_values": "Ordered anatomical landmarks and reconstructed centreline, with epicardial or intramural relationship where established", "why_it_matters": "Supports identification and detection of departures from the expected course." }, { "name": "Coronary arterial relationships", "kind": "relation", "unit_or_values": "Named artery, crossing location, superficial/deep/uncertain relationship and separation in mm if measurable", "why_it_matters": "Describes local anatomy that can affect procedural planning." }, { "name": "Venous connections", "kind": "relation", "unit_or_values": "Observed tributaries, communications and outflow recipient with connection landmarks", "why_it_matters": "Distinguishes demonstrated drainage anatomy from assumed textbook connections." }, { "name": "Luminal geometry", "kind": "measurement", "unit_or_values": "Diameter and segment length in mm; bend angle in degrees; measurement site, method and cardiac phase", "why_it_matters": "Supports reproducible comparison and assessment of a proposed instrument route." }, { "name": "Patency", "kind": "state", "unit_or_values": "Patent, narrowed, occluded, indeterminate or not assessed; affected segment and supporting observation", "why_it_matters": "Separates an anatomical vessel from evidence about its current lumen." }, { "name": "Flow observation", "kind": "measurement", "unit_or_values": "Direction relative to coronary sinus and velocity in cm/s when measured, with method and acquisition conditions", "why_it_matters": "Avoids treating anatomical connectivity as proof of actual flow." }, { "name": "Junctional valve observation", "kind": "state", "unit_or_values": "Visualised, not visualised, indeterminate or not assessed; position and apparent lumen coverage", "why_it_matters": "Records a potential obstacle without inferring absence from nonvisualisation." }, { "name": "Observation adequacy", "kind": "state", "unit_or_values": "Adequate, limited or nondiagnostic for each claim, with modality, date and limitations", "why_it_matters": "Controls whether identification, dimensions or condition can support an action." } ], "affordances": [ "Trace and annotate the vein on suitable cardiac images or an anatomical specimen.", "Reconcile segment names across anatomical references and clinical reports.", "Map observed tributaries, outflow connections and arterial crossings.", "Compare segment dimensions and patency across adequately matched observations.", "Flag uncertain anatomy or unresolved obstacles for specialist review before instrumentation.", "Assess whether available anatomical evidence is sufficient for a proposed coronary venous route." ], "agent_conduct": { "may": [ "Describe the great cardiac vein and its course in clear anatomical terms.", "Support authorized clinicians in labelling it on cardiac imaging." ], "must_not": [ "Perform or guide a cardiac procedure without a qualified clinician in control.", "Interpret a person's cardiac imaging as a diagnosis without clinical review.", "Share identifiable cardiac imaging without consent." ], "requires_human": [ "Any decision about a cardiac device lead or catheter placed in the coronary veins." ] }, "ethics": { "considerations": [ "Errors in cardiac procedures can cause life-threatening bleeding.", "Patients rely on accurate explanation before consenting to procedures." ], "affected_parties": [ "Cardiac patients", "Clinicians and their teams" ] }, "owners": { "steward": "Nobody: part of a person's body; clinicians answer for its care.", "master_systems": [] }, "visual_identification": [ "Runs with the anterior interventricular artery in the groove on the front of the heart.", "Curves into the left atrioventricular groove toward the coronary sinus." ], "failure_modes_and_hazards": [ "Can be injured during cardiac device lead placement or surgery.", "Anatomical variation can mislead procedures." ], "standards_and_regulation": [ "Terminologia Anatomica, Federative International Programme for Anatomical Terminology." ], "what_it_is_for": [ "The great cardiac vein collects blood from parts of the heart muscle and conveys it toward the coronary sinus.", "It is encountered in anatomical study, cardiac imaging and clinical assessment of the coronary venous system.", "Its course and anatomical variation are relevant when interpreting images or planning procedures involving cardiac veins." ] }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q2886255: great cardiac vein", "url": "https://www.wikidata.org/wiki/Q2886255", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Great cardiac vein", "url": "https://en.wikipedia.org/wiki/Great_cardiac_vein", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "identity-and-segment-boundaries", "name": "Identity and segment boundaries", "description": "Establish what vessel and extent the great cardiac vein label denotes.", "rationale": "Different segment conventions can make apparently equivalent records describe different anatomical extents.", "layers": [ { "id": "subject-and-identification", "name": "Subject and identification", "description": "Anchor the vessel to a particular heart and demonstrated anatomy.", "findings": [ { "id": "identified-great-cardiac-vein", "name": "Identified great cardiac vein", "description": "Record the identification evidence and distinguish a confirmed vessel from a provisional annotation.", "questions": [ { "text": "Which individual or specimen, species and heart does this vessel belong to?", "kind": "provenance", "id": "identified-great-cardiac-vein-q01" }, { "text": "What continuous course and connections support identification as the great cardiac vein?", "kind": "definition", "id": "identified-great-cardiac-vein-q02" } ] } ] }, { "id": "named-extent", "name": "Named extent", "description": "Declare the boundaries used for this vessel and its segments.", "findings": [ { "id": "segment-and-sinus-demarcation", "name": "Segment and sinus demarcation", "description": "Preserve the chosen convention for the anterior interventricular portion and the transition to the coronary sinus.", "questions": [ { "text": "Does this record include the anterior interventricular vein within the great cardiac vein, and which reference establishes that convention?", "kind": "boundary", "id": "segment-and-sinus-demarcation-q01" }, { "text": "Which observed landmark marks the transition to the coronary sinus, and is that landmark directly visible?", "kind": "boundary", "id": "segment-and-sinus-demarcation-q02" } ] } ] } ] }, { "id": "course-and-arterial-relationships", "name": "Course and arterial relationships", "description": "Describe the vein's route and its local relationships to coronary arteries and myocardium.", "rationale": "The route supports recognition, while individual crossing anatomy determines which structures are adjacent to a proposed intervention.", "layers": [ { "id": "groove-and-wall-course", "name": "Groove and wall course", "description": "Trace the vessel through anatomical landmarks and establish its relationship to the heart wall.", "findings": [ { "id": "observed-venous-route", "name": "Observed venous route", "description": "Record the actual route rather than completing an incompletely seen vessel from an expected pattern.", "questions": [ { "text": "Where does the identifiable vessel begin, and how does it pass from the anterior interventricular region into the left atrioventricular region?", "kind": "measurement", "id": "observed-venous-route-q01" }, { "text": "Which segments are directly shown to be epicardial or intramural, and which remain unresolved?", "kind": "boundary", "id": "observed-venous-route-q02" } ] } ] }, { "id": "coronary-crossings", "name": "Coronary crossings", "description": "Locate crossings and close approaches involving the anterior interventricular and circumflex arteries.", "findings": [ { "id": "individual-crossing-pattern", "name": "Individual crossing pattern", "description": "Describe each crossing separately; a population pattern does not establish an individual's relationship.", "questions": [ { "text": "Where does the vein cross or closely approach the anterior interventricular and circumflex arteries?", "kind": "measurement", "id": "individual-crossing-pattern-q01" }, { "text": "At each crossing, is the vein superficial or deep to the artery, and what observation establishes this?", "kind": "provenance", "id": "individual-crossing-pattern-q02" } ] } ] } ] }, { "id": "tributaries-and-drainage", "name": "Tributaries and drainage", "description": "Map the vein's incoming connections, communications and outflow.", "rationale": "Drainage cannot be inferred reliably from a vessel name or apparent proximity alone.", "layers": [ { "id": "incoming-venous-network", "name": "Incoming venous network", "description": "Identify tributaries and the myocardial regions they demonstrably connect.", "findings": [ { "id": "tributaries-and-territory-evidence", "name": "Tributaries and territory evidence", "description": "Separate observed tributary junctions from inferred drainage territories.", "questions": [ { "text": "Which tributaries are seen entering the great cardiac vein, including any left marginal connection?", "kind": "definition", "id": "tributaries-and-territory-evidence-q01" }, { "text": "Which myocardial drainage regions are demonstrated, and which are inferred from an anatomical reference?", "kind": "provenance", "id": "tributaries-and-territory-evidence-q02" } ] } ] }, { "id": "outflow-and-communications", "name": "Outflow and communications", "description": "Establish the outflow recipient and any connections to other venous routes.", "findings": [ { "id": "demonstrated-drainage-path", "name": "Demonstrated drainage path", "description": "Record continuity, alternate connections and measured flow direction as distinct observations.", "questions": [ { "text": "Is continuity with the coronary sinus demonstrated, or is another outflow connection observed?", "kind": "boundary", "id": "demonstrated-drainage-path-q01" }, { "text": "Are apical or other communications with neighbouring cardiac veins visible?", "kind": "definition", "id": "demonstrated-drainage-path-q02" }, { "text": "What evidence establishes actual flow direction through the recorded connections?", "kind": "measurement", "id": "demonstrated-drainage-path-q03" } ] } ] } ] }, { "id": "geometry-condition-and-observation", "name": "Geometry, condition and observation", "description": "Record reproducible dimensions and distinguish vessel condition from acquisition limitations.", "rationale": "Apparent narrowing or absence may reflect how the vein was observed; state judgments require localised evidence.", "layers": [ { "id": "segment-geometry", "name": "Segment geometry", "description": "Measure the lumen and bends using explicit anatomical endpoints.", "findings": [ { "id": "localised-lumen-measurements", "name": "Localised lumen measurements", "description": "Associate measurements with the relevant segment and acquisition conditions.", "questions": [ { "text": "What are the measured lumen dimensions and segment length, and where are their endpoints?", "kind": "measurement", "id": "localised-lumen-measurements-q01" }, { "text": "What bend geometry is present where the vessel turns into the atrioventricular region?", "kind": "measurement", "id": "localised-lumen-measurements-q02" }, { "text": "Which modality, cardiac phase and reconstruction method produced these measurements?", "kind": "provenance", "id": "localised-lumen-measurements-q03" } ] } ] }, { "id": "patency-and-evidence-quality", "name": "Patency and evidence quality", "description": "Assess observed abnormalities while retaining uncertainty from incomplete visualisation.", "findings": [ { "id": "supported-condition-assessment", "name": "Supported condition assessment", "description": "Localise suspected narrowing, obstruction or injury and state whether available evidence resolves it.", "questions": [ { "text": "Which segment shows evidence of narrowing, occlusion, dilation or wall injury, and what observation supports that finding?", "kind": "measurement", "id": "supported-condition-assessment-q01" }, { "text": "Could incomplete contrast filling, motion, limited resolution or specimen preparation explain the appearance?", "kind": "boundary", "id": "supported-condition-assessment-q02" }, { "text": "What additional observation would resolve an indeterminate condition assessment?", "kind": "action", "id": "supported-condition-assessment-q03" } ] } ] } ] }, { "id": "procedural-route-and-constraints", "name": "Procedural route and constraints", "description": "Relate the observed vessel to a specified coronary venous access or mapping task.", "rationale": "Route suitability depends on the particular target, vessel geometry and neighbouring anatomy, and cannot be assigned from vessel identity alone.", "layers": [ { "id": "junctional-and-route-obstacles", "name": "Junctional and route obstacles", "description": "Record potential obstacles along the intended segment, including junctional valves.", "findings": [ { "id": "observed-access-constraints", "name": "Observed access constraints", "description": "A valve at the great cardiac vein junction is a documented variable feature; record its observation without presuming its presence or absence. See [Anatomy of the coronary sinus and epicardial coronary venous system in 620 hearts](https://pubmed.ncbi.nlm.nih.gov/23066703/).", "questions": [ { "text": "Is a valve or other intraluminal obstacle visualised near the great cardiac vein-coronary sinus transition?", "kind": "definition", "id": "observed-access-constraints-q01" }, { "text": "Which bends, narrow segments or junction angles constrain the proposed route?", "kind": "measurement", "id": "observed-access-constraints-q02" } ] } ] }, { "id": "task-specific-suitability", "name": "Task-specific suitability", "description": "Connect anatomical evidence to a defined procedural question without issuing a treatment decision.", "findings": [ { "id": "route-assessment-with-limits", "name": "Route assessment with limits", "description": "Express suitability as a bounded assessment for a named target and instrument, with unresolved evidence made explicit.", "questions": [ { "text": "What target and proposed device route require use of this vein or passage into one of its tributaries?", "kind": "action", "id": "route-assessment-with-limits-q01" }, { "text": "Do observed lumen dimensions, bends, patency and arterial relationships adequately support assessment of that route?", "kind": "action", "id": "route-assessment-with-limits-q02" }, { "text": "Which unresolved anatomical details require specialist review or further imaging before the route can be judged?", "kind": "action", "id": "route-assessment-with-limits-q03" } ] } ] } ] }, { "id": "evidence-and-external-alignment", "name": "Evidence and external alignment", "description": "What the world already says about this thing, gathered so the model can be checked against it.", "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.", "layers": [ { "id": "reported-evidence", "name": "Reported evidence", "description": "Findings from the breadth pass, kept separate from the structural claims.", "findings": [ { "id": "evidence-confidence-notes", "name": "Check these first", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "This description concerns human anatomy; the vein is an anatomical structure, not an organism or taxon.", "The precise drainage territory and relationships to coronary arteries vary between individuals.", "Terminological treatment of the anterior interventricular segment and the boundary with the coronary sinus should be checked against the anatomical reference used." ], "questions": [ { "id": "evidence-confidence-notes-q01", "text": "Which of these check these first hold for the sense of great cardiac vein this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-identifiers", "name": "Identifiers and schemes", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "scheme": "Terminologia Anatomica", "value_or_pattern": "Vena cardiaca magna", "note": "Standard Latin anatomical name; no numerical identifier asserted." } ], "questions": [ { "id": "evidence-identifiers-q01", "text": "Which of these identifiers and schemes hold for the sense of great cardiac vein this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-standards-and-regulation", "name": "Standards and regulation", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Terminologia Anatomica, maintained by the Federative International Programme for Anatomical Terminology (FIPAT), standardizes the anatomical name." ], "questions": [ { "id": "evidence-standards-and-regulation-q01", "text": "Which of these standards and regulation hold for the sense of great cardiac vein this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-real-world-use", "name": "Real-world use", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Anatomical landmark in cardiac surgery and coronary venous imaging.", "Part of the coronary venous route used to access tributaries for left ventricular pacing leads in cardiac resynchronization therapy.", "Relevant to mapping and catheter ablation near the left ventricular summit.", "Part of the venous distribution pathway for retrograde cardioplegia delivered through the coronary sinus." ], "questions": [ { "id": "evidence-real-world-use-q01", "text": "Which of these real-world use hold for the sense of great cardiac vein this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-failure-modes-and-hazards", "name": "Failure modes and hazards", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ "Catheter or guidewire manipulation can cause venous dissection or perforation, potentially producing pericardial bleeding and cardiac tamponade.", "Variation in venous course, caliber, valves, and tributary junctions can complicate catheter access and pacing lead placement.", "Ablation within or near the vein can endanger adjacent coronary arteries." ], "questions": [ { "id": "evidence-failure-modes-and-hazards-q01", "text": "Which of these failure modes and hazards hold for the sense of great cardiac vein this model covers, and on what evidence?", "kind": "provenance" } ] }, { "id": "evidence-neighbours", "name": "Neighbouring kinds and how to tell them apart", "description": "Recalled without web access and unsourced; every item is a lead to verify.", "evidence": [ { "name": "Anterior interventricular vein", "difference": "Commonly denotes the portion of the great cardiac vein within the anterior interventricular groove, rather than a wholly separate vessel." }, { "name": "Coronary sinus", "difference": "The larger collecting venous channel receiving the great cardiac vein and other cardiac veins before opening into the right atrium." }, { "name": "Middle cardiac vein", "difference": "Runs in the posterior interventricular groove rather than the anterior interventricular groove." }, { "name": "Small cardiac vein", "difference": "Drains principally right-sided cardiac regions and typically follows the right atrioventricular groove." }, { "name": "Anterior interventricular artery", "difference": "An artery supplying myocardium that accompanies the vein in the anterior interventricular groove; it is also called the left anterior descending artery." } ], "questions": [ { "id": "evidence-neighbours-q01", "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of great cardiac vein this model covers, and on what evidence?", "kind": "provenance" } ] } ] } ] } ] }, "openQuestions": [ "Which anatomical terminology authority should govern whether the anterior interventricular vein is included as a segment of this entry?", "Which landmark should define the great cardiac vein-coronary sinus boundary when the oblique atrial vein or a junctional valve is not visible?", "Should the registry entry explicitly cover homologous vessels across species, or should this publication remain human-specific?", "Which segment-specific reference measurements are sufficiently supported across imaging methods, cardiac phases and specimen conditions to permit comparison?", "What evidence is sufficient to distinguish true absence, anomalous outflow and acquired occlusion from failure to visualise this vein?" ], "statistics": { "bundles": 6, "layers": 11, "findings": 16, "questions": 30 } }