In plain language
In a randomized trial of 256 right-radial diagnostic coronary angiograms, using a single catheter for both coronary arteries lowered operator chest dose by about a quarter and shortened fluoroscopy and procedure times compared with two catheters.
At a glance
- Type of study
- Original research, Randomized trial
- Who was studied
- Interventional cardiologists, Patients
- Size
- n = 256 patients
- Summary based on
- the abstract
What it found
Operator radiation exposure was lower with a single-catheter approach than with a two-catheter approach.
Key figures: 21.6 ± 11.4 µSv vs. 28.0 ± 14.9 µSv
Fluoroscopy time was shorter in the single-catheter group.
Key figures: 152 ± 83 vs. 203 ± 121 s; p < 0.001
Total diagnostic procedure duration was shorter with the single-catheter approach.
Key figures: 9.5 ± 3.2 vs. 11.4 ± 4.0 min; p < 0.001
Authors attribute lower operator exposure to shorter beam-on and procedure times.
Limits to keep in mind
Single high-volume center, diagnostic procedures only, with one dosimeter worn over the apron at the chest rather than measuring eye or under-apron dose; abstract reports no p-value for the operator dose comparison and does not state number of operators.
Related research summaries
- Two Central Nervous System Tumors in One Catheter Lab: Time to Rethink Radiation Protection (2026, Retrospective cohort study)
- Factors Contributing To Radiation Dose For Patients And Operators During Diagnostic Cardiac Angiography (2018, Retrospective cohort study)
- Reduction of radiation exposure during complex interventions for chronic total coronary occlusions: Implementing low dose radiation protocols without affecting procedural success rates (2017, Retrospective cohort study)
- Determinants of operator and patient radiation exposure during cardiac catheterization: Insights from the RadiCure (RADIation reduction during cardiac catheterization using real-timE monitoring) trial (2015, Randomized trial)
- Effect of Vascular Access Site Choice on Radiation Exposure During Coronary Angiography: The REVERE Trial (Randomized Evaluation of Vascular Entry Site and Radiation Exposure) (2015, Randomized trial)
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.