Ultra-Low-Dose Noise-Free Technology to Reduce Radiation Exposure During Coronary Angiography

Area of Science:

• Cardiovascular Interventions
• Medical Imaging Technology
• Radiation Safety

Background:

• Percutaneous coronary intervention (PCI) is crucial for coronary artery disease management.
• Rising procedural volumes increase concerns about radiation exposure from angiography systems.
• A novel ultra-low-dose Noise-Free technology was developed to optimize angiography systems.

Purpose of the Study:

• To evaluate the effectiveness of the Noise-Free technology in reducing radiation exposure during real-world coronary interventions.
• To compare radiation metrics between the Noise-Free technique and conventional methods.
• To assess the impact on image quality.

Main Methods:

• A single-center, real-world, observational cohort study.
• Comparison of procedural radiation exposure (dose area product, air kerma, dose rate) stratified by exposure mode and procedure type.
• Expert semi-quantitative assessment and quantitative contrast-to-noise ratio for image quality evaluation.

Main Results:

• The ultra-low-dose Noise-Free technique showed significant radiation reductions across various metrics in coronary angiography and single-vessel PCI (40%-79% reduction).
• For chronic total occlusion PCI, radiation reductions ranged from 22% to 79%.
• Image quality was comparable between the Noise-Free technique and other systems.

Conclusions:

• The Noise-Free technology effectively reduces radiation exposure during coronary interventions.
• The technique preserves diagnostic image quality, with greater reductions in complex procedures.
• This supports the clinical utility of Noise-Free technology for lowering patient radiation risk.