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Record W2402245338

Complex intracranial arterial anatomy in swine is unsuitable for cerebral infarction projects.

2004· article· en· W2402245338 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenuePubMed · 2004
Typearticle
Languageen
FieldMedicine
TopicComparative Animal Anatomy Studies
Canadian institutionsRoyal University Hospital
Fundersnot available
KeywordsMedicineCerebral arteriesCircle of WillisCirculatory systemIschemiaCerebral infarctionCarotid arteriesOcclusionAngiographyCerebral angiographyCerebral circulationCerebral perfusion pressurePosterior cerebral arteryAnatomyCardiologyPerfusionRadiologyMiddle cerebral artery
DOInot available

Abstract

fetched live from OpenAlex

OBJECTIVE: To see whether swine provide a suitable animal model for cerebral ischemia research projects related to apoptosis. Swine angiograms had not been obtained previously in our institution. METHODS: We performed angiography on an anesthetized pig. A right femoral artery cannulation was carried out, and angiographic images of the right cerebral arteries were obtained. RESULTS: We found that the swine cerebral circulatory system demonstrated a plexus of very small vessels, rete mirabile, in the base of the brain that was perfused by the ascending pharyngeal artery and reconstituted into the internal carotid artery downstream. CONCLUSION: Because of the presence of the rete mirabile, the swine brain circulatory system is not amenable to selective, intracranial, angiographic catheter-mediated infarction of cerebral arteries. Surgical occlusion of the common carotid or ascending pharyngeal artery, although technically possible, was also excluded as a method of creating reliable, reproducible cerebral ischemia because of the prompt and robust circle of Willis cross-perfusion that was observed on the angiograms.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.394
Threshold uncertainty score0.585

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.067
GPT teacher head0.304
Teacher spread0.238 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it