Automatic C-arm Positioning Using Multi-Functional User Interface
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
C-arm positioning is a critical step of the surgical workflow. The traditional method is often time consuming and results in additional radiation exposure to the patient and surgical staff. We propose a user interface that allows surgeons to interact with a simulated X-ray 3D reconstruction of the patient’s anatomy. Optimal views chosen by the surgeon with the simulated X-ray are used to calculate the C-arm position required to achieve that view. The proposed system uses pre-operative CT data to generate a 3D model, and inverse kinematics with 6 degrees of freedom to calculate the C-arm joint parameters. Day of surgery patient position variations are factored in through registration methods using the Kinect. Quantitative results were validated by comparing outputs with ground truths, and results indicate our method can output C-arm position values close to the truth considering the limitation of working with truncated values. Automatic positioning reduces radiation by minimizing typical positioning errors. Future work will include the integration of radiation exposure measurements and visualization into the user interface.
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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) | 0.000 | 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) | 0.002 | 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