Pseudo Left Main Coronary Artery Disease
Bibliographic record
Abstract
A 72-year-old hypercholesterolemic gentleman with anginal symptoms Canadian Cardiovascular Society (CCS) class III and a positive thallium scintigraphy with ischemia localized to the anterior wall, was submitted to coronary angiography. Initial images indicated a distal left main coronary artery stenosis (left upper panel, large arrow). However, subsequent views pointed to a “phantom” artery imaged belatedly (right upper panel, short arrow). It was only after a tedious exercise that successful engagement of a separate ostium of another left coronary artery clarified the anatomy of this patient (left lower panel). It thus became apparent that it was a separately originating, diseased left anterior coronary artery descending (LAD) which explained the localization of this patient’s ischemia to the anterior wall. This was finally remedied with successful direct stenting of the long stenotic segment of the LAD performed during the same session (right lower panel), thus obviating emergency coronary artery bypass grafting, which would have been a plausible course of action, should one have relied upon the initial imaging perfectly mimicking a left main disease. IMAGES IN MEDICINE
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.
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.014 | 0.002 |
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".