In plain language
In 200 diagnostic coronary angiograms at one Australian centre, 3 pulses-per-second fluoroscopy cut patient dose-area product by up to 58% without longer fluoroscopy time. Staff dose was not measured, but lower patient dose generally means less scatter to the fluoroscopy team.
At a glance
- Type of study
- Original research, Retrospective cohort study
- Who was studied
- Interventional cardiologists, Patients, Phantom or simulation (no people)
- Size
- n = 200 procedures
- Where
- Australia
- Summary based on
- the full text
What it found
Median dose-area product (DAP) was lowest with 3 pps fluoroscopy compared with 6 pps and both 10 pps control operators.
Key figures: 6.34 (4.73-7.94) vs 9.10, 9.62, 15.02 Gy.cm2; P < 0.001
Procedural dose at 3 pps was up to 58% lower than 10 pps controls, and 30% lower than the same operator at 6 pps.
Key figures: up to 58%; 30%
Reference air kerma was also significantly lower at 3 pps.
Key figures: 101 mGy vs 133, 168, 236 mGy; P < 0.001
Fluoroscopy time did not increase with the 3 pps setting.
Key figures: 2.2 min (3 pps) vs 1.9 and 2.6 min (10 pps)
All 50 cases at 3 pps were completed without reverting to higher pulse rates; phantom showed slight loss of spatial and contrast resolution but no ghosting with K-factor correction.
Key figures: phantom dose rate 21 vs 72 uGy/s
Limits to keep in mind
Single-centre retrospective pilot in which pulse rate is confounded with operator (one operator used low pulse rates), and fluoroscopy and cine dose could not be separated; staff dose was not measured and image adequacy was judged by one operator.
Related research summaries
- Patient And Staff Doses In Paediatric Interventional Cardiology Derived From Experimental Measurements With Phantoms (2015, Phantom or simulation study)
- Optimisation of imaging protocols in interventional cardiology: impact on patient doses (2017, Original research)
- Two Central Nervous System Tumors in One Catheter Lab: Time to Rethink Radiation Protection (2026, Retrospective cohort study)
- Reduced radiation exposure in the cardiac catheterization laboratory with a novel vertical radiation shield (2019, Prospective cohort study)
- Factors Contributing To Radiation Dose For Patients And Operators During Diagnostic Cardiac Angiography (2018, 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.