Rare Fetal Case of Absent Ductus Venosus With Extrahepatic Drainage Into the Coronary Sinus
Bibliographic record
Abstract
Absent ductus venosus (ADV) is a rare anomaly that is often associated with significant fetal anomalies and chromosomal aneuploidies. Prognosis depends on the pattern of drainage of the umbilical vein and the associated anomalies. The ductus venosus carries oxygenated blood from the umbilical vein to the inferior vena cava and prevents fetal high output heart failure by providing a resistor against placental blood flow. This case demonstrates echocardiographic delineation of a rare variant of ADV, with extrahepatic drainage from the left superior vena cava into the coronary sinus. J Clin Gynecol Obstet. 2024;13(2):54-57 doi: https://doi.org/10.14740/jcgo970
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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 | 0.006 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.003 | 0.003 |
| Insufficient payload (model declined to judge) | 0.002 | 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".