Evolving operator practices reduced patient radiation dose in interventional cardiology: Trends in a single center
Authors' conclusion
There was a significant reduction in patient radiation (Ka,r and PKA) and contrast volume during the study period driven by systematic and operator practice changes.
Study context
- Population
- Procedures performed in the Cath lab of one institution between 2007 and 2019
- Participants
- 99,400 procedures
- Exposure
- Trends in patient radiation dose over the study period
- All proceduresn = 99,400
- Continuous fluoroscopesn = 3
- Outcome
- Ka,r, all procedures
- Follow-up
- 2007 to 2019
Methodological detailssingle center
- Single center
Main finding
As reported in the abstract
Median Ka,r declined by
63%, from 1.5 to 0.5Gy
99th percentile Ka,r declined by
44%, from 8.6 to 4.8Gy
Observational data: associations, not effects.
Further findings
Ka,r, 3 continuous fluoroscopes · 2007 to 2019
- Median Ka,r declined by
- 60% from 1.6 to 0.6Gy
- 99th percentile Ka,r declined by
- 52% from 9.1 to 4.4Gy
Contrast volume, all procedures · 2007 to 2019
- Median contrast volume declined by
- 53%, from 150 to 70ml
- 99th percentile contrast volume declined by
- 42% from 600 to 350ml
Fluoroscopy time, all procedures · 2007 to 2019
- Median fluoroscopy time declined by
- 2%
- 99th percentile fluoroscopy time increased by
- 32%
Fluoroscopy time, continuous subset · 2007 to 2019
- Median fluoroscopy time declined by
- 20%
- 99th percentile fluoroscopy time increased by
- 5%
Ka,r, operator's subset · 2007 to 2019
- Median Ka,r declined by
- 43% (P = .0362)
- 99th percentile Ka,r decreased by
- 22% (P = .0481)
Substantial radiation dose procedures · 2007 to 2019
- Decreased as share of procedure volume
- from 7% to 0.8%
Original publication
Evolving operator practices reduced patient radiation dose in interventional cardiology: Trends in a single center. Am Heart J. Published 18 January 2025. doi:10.
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