In plain language
At one US centre, 3D fusion computed tomography (CT) overlay during fenestrated aortic repair was linked to roughly halved patient radiation dose, shorter fluoroscopy time and less contrast. Staff dose was not measured, so any benefit to the fluoroscopy team is inferred.
At a glance
- Type of study
- Original research, Retrospective cohort study
- Who was studied
- Patients, Vascular surgeons
- Size
- n = 72 patients
- Where
- United States
- Summary based on
- the full text
What it found
Overall patient radiation dose was lower with 3D fusion CT than without.
Key figures: 5000±280 vs 2200±1300 mGy*cm2; P<.0001
Fluoroscopy time was lower overall with 3D fusion CT.
Key figures: 84±36 vs 55±21 minutes; P=.0004
In three- and four-vessel fenestrated endovascular aneurysm repair (FEVAR), radiation dose and procedure time both fell with 3D fusion CT.
Key figures: 5400 ± 2225 vs 2700 ± 1400 mGy; P < .0001; procedure time 330 ± 100 vs 230 ± 50 minutes; P = .002
Contrast use fell substantially overall.
Key figures: 86±25 vs 34±15 mL; P<.0001
Staff dose was not measured because of inconsistent badge use; reduced staff exposure was only assumed.
Limits to keep in mind
This was a single-surgeon, single-institution before-after comparison that also changed imaging systems, with possible learning-curve effects and a lower body mass index (BMI) in the 3D CT group. No staff dosimetry was collected.
Related research summaries
- Radiation Awareness for EVAR in Hybrid Operating Room: An Instant Operator Risk Chart (2021, Dosimetry measurement study)
- 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)
- Evaluating Strategies For Reducing Scattered Radiation In Fixed-Imaging Hybrid Operating Suites (2017, Prospective cohort study)
- Modern Fixed Imaging Systems Reduce Radiation Exposure To Patients And Providers (2017, Retrospective cohort study)
- New Image-Processing And Noise-Reduction Software Reduces Radiation Dose During Complex Endovascular Procedures (2016, Retrospective cohort study)
How this summary was made
ORSIF prepared this summary with AI assistance from the full text 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.