In plain language
At one vascular training centre, upgrading to a fixed imaging system with advanced dose-reduction processing roughly halved patient air kerma for endovascular aneurysm repair (EVAR) and SFA procedures, and surgeons' badge doses also fell. Badge readings are dosimetry, not health outcomes.
At a glance
- Type of study
- Original research, Retrospective cohort study
- Who was studied
- Vascular surgeons, Trainees, Patients
- Size
- n = 211 procedures
- Summary based on
- the abstract
What it found
After matching, air kerma for EVAR fell by 53.2% after the imaging system upgrade.
Key figures: 53.2% reduction (846.1 vs 395.9 mGy; P = .004)
After matching, air kerma for SFA interventions fell by 57.0%.
Key figures: 57.0% reduction (305.0 vs 131.3, P < .001)
Surgeons' total badge deep dose equivalent decreased after the upgrade.
Key figures: 39.5 to 17 mrem (P = .029)
Unmatched EVAR air kerma roughly halved while fluoroscopy time did not differ significantly.
Key figures: Air kerma (AK) 1178.5 vs 581 mGy (P < .001); FT 28.1 vs 21.2 min (P = .051)
Limits to keep in mind
Single-institution before-after comparison with small post-upgrade groups (25 EVAR, 35 SFA); staff dose based on aggregate surgeon badge readings that cannot be attributed to specific procedures, and only surgeons' badges were reported.
Related research summaries
- Comparison of Radiation Exposure during Endovascular Treatment of Peripheral Arterial Disease with Flat-Panel Detectors on Mobile C-arm versus Fixed Systems (2017, Prospective cohort study)
- ICRP Draft - Radiological Protection in Fluoroscopically Guided Procedures (Guideline or consensus statement)
- Radiation Awareness for EVAR in Hybrid Operating Room: An Instant Operator Risk Chart (2021, Dosimetry measurement study)
- Factors Contributing To Radiation Dose For Patients And Operators During Diagnostic Cardiac Angiography (2018, Retrospective cohort study)
- Evaluating Strategies For Reducing Scattered Radiation In Fixed-Imaging Hybrid Operating Suites (2017, Prospective cohort study)
How this summary was made
ORSIF prepared this summary with AI assistance from the abstract of the paper. A program then checked that the passage supporting each finding appears word for word in that source. A person has not yet reviewed each summary, so read the original before relying on a number. ORSIF summarizes research and does not endorse any product or company. Report a problem with this summary.
Prepared November 3, 2026.