Strategies for Radiation-Dose Reduction and Image-Quality Optimization in Multidetector Computed Tomographic Coronary Angiography

Can Assoc Radiol J. 2010 Dec;61(5):271-9. doi: 10.1016/j.carj.2009.11.013. Epub 2010 Jun 4.


The technological evolution of computed tomography (CT) in the last decade has placed CT coronary angiography (CTCA) in the spotlight of imaging modalities available to evaluate patients with coronary artery disease. Widespread utilisation of CTCA has generated concern from the medical community regarding potential health issues related to the significant radiation exposure associated with this method, and several modifications of the CTCA technique have been proposed to reduce the radiation exposure without affecting the diagnostic image quality. This review will discuss a practical approach to performing CTCA to ensure that the radiation dose is minimized while maintaining diagnostic image quality.

Publication types

  • Review

MeSH terms

  • Calcinosis / diagnostic imaging
  • Contrast Media
  • Coronary Angiography / methods*
  • Coronary Disease / diagnostic imaging*
  • Electrocardiography
  • Humans
  • Radiation Dosage
  • Radiographic Image Enhancement / methods*
  • Radiographic Image Interpretation, Computer-Assisted
  • Tomography, X-Ray Computed*


  • Contrast Media