Contamination During a Brachytherapy Procedure
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
This paper describes an unusual contamination incident that occurred during the treatment of a prostate cancer patient with seeds containing 125I. The incident became particularly interesting as the radiation safety procedures in place prior to the incident were, in fact, inappropriate for the type of incident that occurred, resulting in a series of response errors. Strands containing 108 125I seeds with a total activity of 1.61 GBq (43.6 mCi) were implanted into a patient's prostate and the patient was sent to the recovery room. A radiation survey detected radiation levels of up to 15 microR h(-1), 10 cm from the surface of the implantation needles. Multiple individuals entered the room and were potentially exposed to contamination. Contamination was detected in a sample of the patient's urine, indicating that one or more implanted seeds were leaking. Initial test results for staff showed that 12 of 15 had thyroid levels potentially above their corresponding minimum detectable activity levels, with calculated thyroid burdens ranging from 0.17 kBq to 0.94 kBq, but, subsequent measurements, using each staff member's thigh counts as background, suggested that no staff member had been contaminated. The patient showed high uptake of 125I in his neck 10 d following the incident, estimated to correspond to an initial thyroid burden of 58 kBq. The possibility of contamination was not immediately considered due to the suspicion of the more common problem of a misplaced source. The initial measurements suggesting thyroidal contamination in staff point to an error in our thyroid screening method.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it