Radiation dose of cardiac computed tomography - what has been achieved and what needs to be done.

Alkadhi, Hatem; Leschka, Sebastian · Eur Radiol · 2011

review · Level V

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Abstract

This review highlights the recently introduced techniques by manufacturers and various research workers to reduce radiation dose in coronary CT. It discusses in detail the development of ECG-based tube current modulation, the application of low tube voltage protocols and prospective ECG-gating. It also briefly discusses two further methods of dose reduction, namely minimisation of the x-y anatomical coverage and adaptive statistical iterative reconstruction.

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