In plain language
In interventional cardiology, halving fluoroscopy frame rate and lowering cine dose per frame cut median patient kerma-area product by 37-43% across 1635 procedures, with image quality judged clinically sufficient. Staff dose was not measured.
At a glance
- Type of study
- Original research
- Who was studied
- Patients, Phantom or simulation (no people), Interventional cardiologists, Medical physicists and radiation safety officers
- Size
- n = 1,635 procedures
- Summary based on
- the abstract
What it found
After clinical implementation of the optimised protocol, median kerma-area product fell for coronary angiography (CA) and percutaneous transluminal coronary angioplasty (PTCA).
Key figures: 37% for CA and 43% for PTCA
In phantom testing, entrance air kerma fell by about half in low fluoroscopy mode and by 18%-38% for cine with the new protocol.
Key figures: around 50%; 18%-38%
The new fluoroscopy mode halved the frame rate from 15 to 7.5 frames/s at similar dose per frame, and standard cine dose per frame was cut by about 26%.
Key figures: 7.5 frames s-1 vs 15 frames s-1; approximately 26%
Phantom image quality was unchanged in fluoroscopy mode and showed no noticeable change in cine mode.
Clinical image quality under the new protocol was judged sufficient for standard practice across 1635 procedures.
Key figures: 1635 procedures
Limits to keep in mind
Uncontrolled before-after evaluation combining phantom measurements and clinical patient dose, apparently at a single centre; staff dose was not measured, case-mix adjustment was not reported, and clinical image quality assessment was subjective.
Related research summaries
- Patient And Staff Doses In Paediatric Interventional Cardiology Derived From Experimental Measurements With Phantoms (2015, Phantom or simulation study)
- Feasibility of using ultra-low pulse rate fluoroscopy during routine diagnostic coronary angiography (2018, Retrospective cohort study)
- AAPM Medical Physics Practice Guideline 12.a - Fluoroscopy Dose Management (2022, Guideline or consensus statement)
- 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)
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.