Improving central line needle insertions using <i>in-situ</i> vascular reconstructions
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
We developed a neck central line insertion guidance system that renders 3D ultrasound (US) surface reconstructions of the carotid artery (CA) and internal jugular vein (IJV), a tracked model of the needle, and needle trajectory on a 2D monitor. Twenty clinicians evaluated this system compared to US-only guidance on a phantom using time and insertion accuracy metrics. The 3D system had a 100% success rate compared to 70% for the US-only system. The average distance from the centre line of the US reconstructed IJV was 1.8±0.9 mm under 3D guidance compared to 4.2±2.9 mm for US-only. Our system significantly improved needle insertion success rates and targeting accuracy compared to the US-only approach through a radiation-free surface reconstruction of the neck vascular structures. This work has the potential to provide a mobile 3D imaging and visualisation system for needle-based vascular interventions.
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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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