Complex intracranial arterial anatomy in swine is unsuitable for cerebral infarction projects.
Why this work is in the frame
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Bibliographic record
Abstract
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.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it