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For years, coronary CT has been regarded as the gatekeeper to further investigations, especially invasive coronary angiography, and is now recommended as the first-line examination of choice for investigating coronary pathologies. The remaining limitations of coronary CT include assessment of the lumen when there is heavily calcified plaque or stents, especially small ones, and the analysis of plaque components. Furthermore, first-pass perfusion CT can complete coronary CT exams by providing information on the haemodynamic significance of coronary stenosis. Late-enhancement areas can be detected by late phase acquisition indicating, among other things, myocardial infarction or myocarditis. Nevertheless, analysing the myocardium can be difficult due to the low contrast resolution of EID-CT. CTA also has a central place in pre-interventional and pre-surgical planning for valve pathologies. However, this type of scan is mainly used for measuring, not for primary diagnosis, as the valves are difficult to assess due to their very thin structure. SPCCT can potentially overcome most of these limitations.

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Spectral Photon-Counting Computed Tomography (SPCCT) for Cardiac and Aortic Imaging

  • 章节

  • 发表日期：

    2025年

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  • Sara Boccalini,
  • Salim Aymeric Si-Mohamed,
  • Guillaume Fahrni,
  • Benjamin Longere,
  • Christos Gkizas,
  • François Pontana,
  • Aurelien Bustin,
  • Hubert Cochet,
  • Philippe Douek

摘要

For years, coronary CT has been regarded as the gatekeeper to further investigations, especially invasive coronary angiography, and is now recommended as the first-line examination of choice for investigating coronary pathologies. The remaining limitations of coronary CT include assessment of the lumen when there is heavily calcified plaque or stents, especially small ones, and the analysis of plaque components. Furthermore, first-pass perfusion CT can complete coronary CT exams by providing information on the haemodynamic significance of coronary stenosis. Late-enhancement areas can be detected by late phase acquisition indicating, among other things, myocardial infarction or myocarditis. Nevertheless, analysing the myocardium can be difficult due to the low contrast resolution of EID-CT. CTA also has a central place in pre-interventional and pre-surgical planning for valve pathologies. However, this type of scan is mainly used for measuring, not for primary diagnosis, as the valves are difficult to assess due to their very thin structure. SPCCT can potentially overcome most of these limitations.