HAND-HELD SPECTRAL DOMAIN OPTICAL COHERENCE TOMOGRAPHY FINDING IN SHAKEN-BABY SYNDROME
Bibliographic record
Abstract
In Brief Purpose: The purpose of this study was to document the hand-held spectral domain optical coherence tomography (HHSD-OCT, Bioptigen, Durham, NC) findings in shaken-baby syndrome (SBS). The nonaccidental trauma in SBS has been associated with retinal findings, including hemorrhages in all layers of the retina and retinoschisis. Methods: Three consecutive patients with presumed SBS underwent complete ocular examination, fundus photography with the RetCam (Clarity Medical Systems, Pleasanton, CA), and imaging with the HHSD-OCT. Acquisition of the HHSD-OCT images required an assistant to stabilize the head of the infant. Results: All three patients had clinical findings consistent with SBS, including preretinal and intraretinal hemorrhages. Hand-held spectral domain optical coherence tomography documented focal posterior vitreous separation in four of the five eyes with multilayered retinoschisis in one eye, disruption of the foveal architecture and foveolar detachment in one eye, and disinsertion of the internal limiting membrane or inner retinoschisis in one eye. Hand-held spectral domain optical coherence tomography documented preretinal hemorrhages in all five eyes. Conclusion: Hand-held spectral domain optical coherence tomography is helpful in the evaluation of patients with SBS. All patients in our series had vitreoretinal abnormalities not detected on clinical examination, including, for example, multilayered retinoschisis. Hand-held spectral domain optical coherence tomography allows high-resolution imaging of the vitreoretinal interface and retina in infants with SBS and has provided insight into the mechanism of various retinal findings. Shaken-baby syndrome is associated with retinal findings, including retinal hemorrhages in all layers and retinoschisis. Three consecutive infants with shaken-baby syndrome were imaged with the hand-held spectral domain optical coherence tomography. Findings included focal vitreous separation, retinoschisis, and foveolar detachment, none of which were apparent on clinical examination. Supplemental digital content is available in the article.
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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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".