Ultra-high resolution photon-counting detector coronary CT angiography: diagnostic accuracy in patients with high Agatston scores - Takeaways - MDSpire

Ultra-high resolution photon-counting detector coronary CT angiography: diagnostic accuracy in patients with high Agatston scores

  • By

  • Tristan T. Demmert

  • Konstantin Klambauer

  • Lukas J. Moser

  • Jonathan Michel

  • Markus Kasel

  • Robert Manka

  • Victor Mergen

  • Thomas Flohr

  • Matthias Eberhard

  • Hatem Alkadhi

  • November 20, 2025

  • 0 min

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  • 1

    Coronary computed tomography angiography (CCTA) is the first-line imaging modality for low and intermediate coronary artery disease (CAD) probability.

  • 2

    CCTA's accuracy decreases in patients with high Agatston scores due to blooming artifacts from severe coronary calcifications.

  • 3

    Ultra-high resolution photon-counting detector CT (PCD-CT) reduces blooming artifacts, potentially improving CCTA accuracy in high calcium burden patients.

  • 4

    This study evaluates UHR PCD-CCTA's diagnostic performance against invasive coronary angiography (ICA) in patients with Agatston scores > 600.

  • 5

    The study aims to determine if UHR PCD-CCTA can accurately assess coronary stenoses in patients with significant coronary calcium.

Original Source(s)

Ultra-high resolution photon-counting detector coronary CT angiography: diagnostic accuracy in patients with high Agatston scores

  • by Tristan T. Demmert, Konstantin Klambauer, Lukas J. Moser, Jonathan Michel, Markus Kasel, Robert Manka, Victor Mergen, Thomas Flohr, Matthias Eberhard, Hatem Alkadhi

  • November 20, 2025

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