Radiation exposure in flexible ureteroscopy with a flexible and navigable suction ureteral access sheath: A European Association of Urology–Endourology multicenter study
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
Objective: We aimed to study the effect of flexible ureteroscopy (FURS) for renal stones using a flexible and navigable suction ureteral access sheath (FANS) on intraoperative radiation dose and time. Methods: This was a multicenter study of adults who underwent FURS with FANS. The correlation analysis was done to identify factors affecting radiation dose and time measured by the C-arm fluoroscopy intraoperatively. Results: and the median operative time was 39 min. The median radiation dose was 7.4 mSv and median radiation time was 0.6 min. Totally, 91% of patients achieved stone-free status (Grade A or B) on the non-contrast CT scan within 30 days postoperatively. There were no cases of postoperative sepsis. Body mass index, stone volume, and total operation time were associated with a higher radiation dose. Procedures performed under general anesthesia had a lower radiation dose and time than those performed under spinal anesthesia. Disposable scopes were associated with higher radiation time than reusable scopes but not dose. A low-power holmium laser had longer radiation time than other laser sources, but only the thulium fiber laser was associated with a significantly lower radiation dose. Conclusion: Our study is the first to highlight the multitude of factors affecting radiation exposure in FURS with FANS. Although not a direct measure of surgeons' actual exposure, it has important implications for the As Low As Reasonably Achievable principle which is commonly used to minimize radiation exposure to patients and operating room staff.
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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 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