Evolution of Radiation Dose from Cardiac CT

  • Manoj MannilEmail author
  • Hatem Alkadhi
Part of the Contemporary Medical Imaging book series (CMI)


The introduction of protocol developments and software modifications for cardiac computed tomography (CT) imaging such as automatic tube current modulation, optimized tube potential selection, electrocardiography (ECG) pulsing, and iterative reconstruction algorithms enabled a considerable decrease of ionizing radiation dose of cardiac CT examinations. In parallel, submillimeter spatial resolution and high temporal resolution for motion-free imaging of the small anatomic structures of the heart were achieved. Efforts must be made for choosing the best combination of all available techniques for radiation dose reduction for optimizing and minimizing the radiation exposure to each patient undergoing cardiac CT.


Cardiac CT angiography (CCTA) Radiation dose ECG gating Automated exposure control Tube voltage Iterative reconstruction Radiation risks 


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Copyright information

© Humana Press 2019

Authors and Affiliations

  1. 1.Institute of Diagnostic and Interventional Radiology, University Hospital ZurichZurichSwitzerland

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