Sonographic Assessment of a Bifid Median Nerve and Median Artery in Carpal Tunnel Syndrome
Bibliographic record
Abstract
Numerous variants of the median nerve in the carpal tunnel, such as a bifid morphology, have been reported1. The prevalence of bifid median nerve with or without a persistent median artery continues to be intriguing. However, a bifid nerve has been observed in patients with carpal tunnel syndrome (CTS). The nerve compression via trauma, dilatation, thrombosis, and arterial calcification is disputed2. An ultrasound scan in longitudinal and transverse planes at the volar aspect of both wrists, at the level of the carpal tunnel, was obtained in 3 patients. Scans were performed using a GE Logiq e ultrasound machine equipped with a broadband linear probe from 8 to 13 MHz. The first case, an 80-year-old woman with history of osteoarthritis of the hands, presented with tingling and numbness at the median nerve area in the right …
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.003 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.001 |
| 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".