In plain language
In 226 patients undergoing aortic endovascular repair, combining lower pulse-rate fluoroscopy, fusion imaging and dilute contrast lowered patient dose area product by about 40% without loss of technical success. Staff dose was not measured, though lower patient dose usually means less scatter.
At a glance
- Type of study
- Original research, Retrospective cohort study
- Who was studied
- Patients
- Size
- n = 226 patients
- Summary based on
- the abstract
What it found
Patient radiation exposure (dose area product) was lower with the combined protocol than with the prior protocol.
Key figures: 19,934 [interquartile range (IQR), 11,340-30,615] μGym(2) vs 32,856 [IQR, 19,562-55,677] μGym(2); P < .0001
Reducing the frame rate from 7.5 to 3.75 frames/s alone accounted for a median 22% reduction in dose area product.
Key figures: 22%
Iodine dose was substantially lower with the combined protocol.
Key figures: 14.5 [IQR, 8.8-20.4] g vs 43.0 [IQR, 32.2-56.0] g; P < .0001
Technical success, operation time and fluoroscopy time were similar between groups.
Key figures: 92% and 92%; fluoroscopy 66 vs 72 minutes, P > .05
For fenestrated grafts, radiation exposure did not differ, attributed to greater superior mesenteric artery involvement in the new-protocol group.
Key figures: 81% vs 17%; P < .0001
Limits to keep in mind
Single-centre retrospective before-after comparison with historical controls; only patient dose area product was measured, not staff dose, and several changes were introduced at once.
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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.