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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  • 1

    44% of patients exceeded the recommended 9 mSv dose for CCTA.

  • 2

    Study analyzed 19,302 adults across 742 centers in 101 countries.

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    Median age of patients was 63 years.

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    High-dose disparities found in low-income regions.

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    Newer scanner technology linked to lower radiation exposure.

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    Variability highlights need for standardized protocols.

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    Study limitations include reliance on site-reported data.

Original Source(s)

Global Cardiac Imaging Radiation Varies Widely

  • by Julie Greenbaum

  • March 12, 2026

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