Radiation dose reduction in the cardiac catheterization laboratory utilizing a novel protocol

Area of Science:

• Cardiology
• Medical Imaging
• Radiation Safety

Background:

• Cardiac catheterization laboratories are significant sources of radiation exposure.
• Effective dose reduction and monitoring are crucial in these environments.
• Implementing new protocols is essential for patient and staff safety.

Purpose of the Study:

• To evaluate the effectiveness of a novel radiation reduction protocol (RRP) for coronary angiography and interventions.
• To identify determinants of radiation dose in these procedures.
• To quantify radiation dose reduction achieved by the RRP.

Main Methods:

• A prospective study analyzing diagnostic coronary angiograms and percutaneous coronary interventions before and after RRP implementation.
• Radiation dose was measured at the interventional reference point.
• Analyses were conducted for conventional 15 frames/s (FPS) and reduced 7.5 FPS settings.

Main Results:

• The RRP achieved a 48% overall dose reduction (0.56 ± 0.03 Gy post-RRP vs. 1.07 ± 0.05 Gy pre-RRP).
• Reduced frame rates (7.5 FPS) yielded higher dose reductions (62%) compared to 15 FPS (35%).
• Factors like male sex, radial approach, BMI, cine runs, and frame rates were associated with increased dose.

Conclusions:

• A novel RRP significantly reduces radiation dose by 48.5% in interventional cardiology.
• The RRP, especially at reduced frame rates, is a valuable tool for minimizing radiation exposure.
• This protocol warrants strong consideration for adoption in routine interventional cardiology practice.