An Unusual Presentation of Abdominal Aortic Aneurysm on Static Renal Tc-99m DMSA Scintigraphy
Bibliographic record
Abstract
The purpose of this report is to describe a case of an unusual presentation of aortic aneurysm on a Tc-99m DMSA scan. A Tc-99m DMSA scan was performed and due to findings seen on the initial views, supplementary larger field of view images were acquired. Assessment of the patient's radiologic imaging was also undertaken. Abnormal accumulation of tracer was seen on the Tc-99m DMSA scan. Supplementary views revealed that this was situated within the abdomen anteriorly, above the bladder. Ultrasound and MRI of the abdomen confirmed that this area corresponded to a large abdominal aortic aneurysm. This case highlights the importance of detailed image evaluation for any ancillary findings, performing supplementary views, and the usefulness of reviewing correlative imaging in arriving at a diagnosis.
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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 | 0.001 | 0.006 |
| Meta-epidemiology (narrow) | 0.002 | 0.002 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.005 | 0.003 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".