Worldwide Radiation Dose in Coronary Artery Disease Diagnostic Imaging - PubMed
4 hours ago
- #radiation dose
- #coronary artery disease
- #diagnostic imaging
- The study examines worldwide radiation doses from noninvasive coronary artery disease (CAD) diagnostic imaging.
- Data was collected from 19,302 adults across 742 centers in 101 countries during a single week in late 2023.
- Imaging modalities included SPECT, PET, CACS, and CCTA, with varying median effective doses: CACS (1.2 mSv), PET (2.0 mSv), SPECT (6.5 mSv), and CCTA (7.4 mSv).
- 81% of nuclear cardiology centers and 79% of patients met the ≤9 mSv guideline, compared to 56% for CCTA.
- Radiation doses varied significantly by region, with Western Europe having the lowest doses and Latin America/Africa the highest.
- Low- and middle-income countries had 20-96% higher doses than high-income countries, with notable variation within regions.
- The study highlights the need for standardized protocols, training, and updated equipment to reduce radiation exposure, especially in lower-income countries and for CCTA procedures.