From the Journals

Global Cardiac Imaging Radiation Varies Widely

International study of more than 19,000 patients finds substantial differences in radiation exposure from coronary artery disease imaging across modalities, regions, and income levels.

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A global study published in JAMA reveals that 44% of patients undergoing coronary computed tomography angiography (CCTA) received radiation doses exceeding the recommended 9 millisievert target. The International Atomic Energy Agency's INCAPS 4 study, conducted in late 2023, analyzed radiation exposure in 19,302 adults across 742 centers in 101 countries. Despite guidelines, wide variability and higher doses were observed in low-income regions. Newer scanner technology was linked to lower radiation exposure, highlighting the need for improved standardization in imaging practices.

Original Source(s)

Global Cardiac Imaging Radiation Varies Widely

  • by Julie Greenbaum

  • March 12, 2026

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