Table shows effective radiation doses for coronary CTA performed with different CT systems. "Min Dose" = advanced ECG-gated tube current modulation algorithm. "Dose Reduction" refers to a comparison with the standard retrospectively gated 120-kV coronary CT angiography protocol. Image republished with permission of the American Roentgen Ray Society from AJR, May 2011, Vol. 196, pp. W550-W557.
