Are Posttherapy Radioiodine Scans Informative and Do They Influence Subsequent Therapy of Patients with Differentiated Thyroid Cancer?
Why this work is in the frame
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Bibliographic record
Abstract
UNLABELLED: Posttherapy scans (PTS) with a gamma camera are typically used after therapeutic doses of 131I to visualize metastases that may not be seen with lower dose diagnostic scans. During a 16-month period, we studied 81 patients (64 with papillary thyroid cancer and 17 with follicular thyroid cancer), who had both a diagnostic whole-body scan (131I dose 3 mCi) and a PTS. A total of 117 PTS were evaluated. At the time of PTS, clinical or radiologic evidence of metastatic or residual disease was present in 68 patients (84%). The anatomic sites of known disease included, neck (63), mediastinum (23), lung (35), bone (14), trachea (16), esophagus (5), and brain (2). PTS showed focal areas of abnormal uptake not seen in diagnostic scans in 15 scans (13%). Areas with abnormal new uptake included: neck (5), lung (5), mediastinum (4), bone (2), and adrenal (1). In 7 patients (9%) the PTS results impacted future decisions regarding plans for subsequent diagnostic scanning and 131I therapy or changed the patient's risk group category. IN CONCLUSION: (1) 13% of 117 PTS demonstrated abnormal foci of 131I uptake not seen on pretherapy scans and (2) PTS changed management strategy in 9% of the studied patients.
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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) | 0.001 | 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