Abstract 11598: Coronary Flow Reserve in Patients With Prior Spontaneous Coronary Artery Dissection and Recurrent Angina
Bibliographic record
Abstract
Background: Spontaneous coronary artery dissection (SCAD) is an important cause of myocardial infarction (MI) in young women. A significant proportion of SCAD patients have ongoing chronic chest pain despite healing of their dissection, the etiology of which is poorly understood. We sought to determine whether coronary microvascular dysfunction (CMD) contributes to post-SCAD chronic chest pain by performing coronary reactivity testing (CRT). Methods: Vancouver General Hospital is a quaternary referral center for SCAD patients and we prospectively follow over 350 SCAD patients. Patients with persistent chronic chest pain at least 3 months post-SCAD were eligible for our study. Eleven patients consented to having coronary angiography with CMD assessment. CRT was performed with the PressureWire wire (St Jude Medical) using thermodilution technique. Fractional flow reserve (FFR), coronary flow reserve (CFR), and index of microcirculatory resistance (IMR) were measured in two coronary arteries: a previously af...
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".