Comparative analysis of photon-counting and energy-integrating detector CT to identify obstructive coronary artery disease - Summary - MDSpire

Comparative analysis of photon-counting and energy-integrating detector CT to identify obstructive coronary artery disease

  • By

  • Melinda Boussoussou

  • Milán Vecsey-Nagy

  • Zsófia Jokkel

  • Borbála Vattay

  • Anikó Kubovje

  • Barbara Sipos

  • Márton Kolossváry

  • Anikó Ilona Nagy

  • Lili Száraz

  • Sámuel Beke

  • Bernard Schmidt

  • Máté Kiss

  • Béla Merkely

  • Josua A. Decker

  • Tilman Emrich

  • Akos Varga-Szemes

  • Pál Maurovich-Horvat

  • Bálint Szilveszter

  • November 14, 2025

  • 0 min

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Objective:

To evaluate the diagnostic accuracy of dual-source photon-counting detector CT (PCD-CT) compared to energy-integrating detector CT (EID-CT) for detecting ≥ 50% or ≥ 70% stenosis in symptomatic patients referred for coronary CT angiography (CCTA), using invasive coronary angiography (ICA) as the reference standard.

Key Findings:
  • PCD-CT demonstrated improved image quality and diagnostic accuracy compared to EID-CT, with a reported increase in sensitivity/specificity (quantify if available).
  • PCD-CT reduced blooming artifacts in patients with diffuse coronary calcification.
Interpretation:

The findings suggest that PCD-CT may offer superior diagnostic performance for identifying obstructive coronary artery disease compared to traditional EID-CT, particularly in patients with extensive calcification, which could influence clinical decision-making.

Limitations:
  • The study is retrospective and may have selection bias, including potential confounding factors.
  • Limited data on the first-generation dual-source PCD-CT system's performance in diverse patient populations.
Conclusion:

PCD-CT shows promise as a more accurate diagnostic tool for obstructive coronary artery disease, warranting further studies to confirm these findings in larger cohorts and diverse populations.

Original Source(s)

Comparative analysis of photon-counting and energy-integrating detector CT to identify obstructive coronary artery disease

  • by Melinda Boussoussou, Milán Vecsey-Nagy, Zsófia Jokkel, Borbála Vattay, Anikó Kubovje, Barbara Sipos, Márton Kolossváry, Anikó Ilona Nagy, Lili Száraz, Sámuel Beke, Bernard Schmidt, Máté Kiss, Béla Merkely, Josua A. Decker, Tilman Emrich, Akos Varga-Szemes, Pál Maurovich-Horvat, Bálint Szilveszter

  • November 14, 2025

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