CT Evaluation of the Myocardial Supply-Fast kV-Switching Dual-Energy CT

  • Donya A. Al-Hassan
  • Amr M. Ajlan
  • Jonathon Leipsic
Part of the Medical Radiology book series (MEDRAD)


Cardiovascular computed tomography (CT) has undergone significant technical developments over the past decade. The introduction of multi-detector row computed tomography (MDCT) with wider detector coverage, faster gantry rotation speed, multiple X-ray sources, electrocardiographic (ECG)-based tube current modulation, and integration of new iterative reconstruction algorithms has allowed for tangible improvements in diagnostic accuracy. Utilizing these technical advancements, recent attempts have been made to develop CT myocardial perfusion (CTP) imaging strategies. Moreover, the evaluation of myocardial perfusion defects on routine coronary CT angiography (cCTA) has been shown to be of additional value above that of assessing coronary anatomy alone, particularly in the acute chest pain setting. Unfortunately, there are many limitations that currently hinder CT perfusion with single-energy CT imaging, including artifacts. This chapter provides an overview of the role of single-source dual-energy CT in the evaluation of the myocardial perfusion and the current state of Rapid-kVp switching dual-energy CT.


Myocardial Perfusion Coronary Compute Tomography Angiography Fractional Flow Reserve Invasive Coronary Angiography Obstructive Coronary Artery Disease 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Donya A. Al-Hassan
    • 1
  • Amr M. Ajlan
    • 2
  • Jonathon Leipsic
    • 1
    • 3
  1. 1.Department of RadiologySt Paul’s HospitalVancouverCanada
  2. 2.Department of RadiologyKing Abdulaziz University HospitalJeddahSaudi Arabia
  3. 3.The Division of Nuclear Medicine, Department of RadiologyProvidence Health Care, University of BritishVancouverCanada

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