Group comparison of objective image quality (mean vessel attenuation, muscle attenuation, background noise, CNR, SNR).
Mixed model ANOVA was used for group comparison of objective image quality. Data are means±standard deviations.
HU = Houndsfield units, CNR = contrast-to-noise ratio, SNR = signal-to-noise ratio. BN = Standard deviation HU.
*BN at the level of the aorta = BN ACC.†
= Significance level <0.05.