Arteriosclerosis or Vasculitis? Color Duplex Sonography in Giant Cell Arteritis
Bibliographic record
Abstract
To the Editor: We followed with great interest the report by Czihal, et al 1 presenting new possibilities of objective, noninvasive diagnostic procedures that remain insufficient in giant cell arteritis (GCA). We would like to share our clinical experiences with arteritic changes in patients with GCA. Sonographic presentations of vasculitis may be mistaken for arteriosclerosis, especially in elderly patients who typically have GCA. That was the case in a patient with mild systemic manifestations and insidious disease onset. A 64-year-old woman presented with carotidynia — a rare manifestation of GCA. Color duplex sonography (CDS) revealed hypoechoic, homogenous, circumferential but not symmetrical bilateral wall thickening involving carotid and internal carotid arteries up to 15 mm from the carotid … Address correspondence to Dr. Milchert; E-mail: marcmilc{at}hotmail.com
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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 | 0.002 | 0.013 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.002 | 0.003 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.016 | 0.008 |
| Insufficient payload (model declined to judge) | 0.004 | 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".