Contrast-to-Noise Ratio and Low-Contrast Object Resolution on Full- and Low-Dose MDCT: SAFIRE Versus Filtered Back Projection in a Low-Contrast Object Phantom and in the Liver
American Journal of Roentgenology, 07/05/2012
Baker ME et al. – Lower dose scans reconstructed with SAFIRE have a higher contrast–to–noise ratio (CNR). The ability of sinogram–affirmed iterative reconstruction (SAFIRE) to improve low–contrast object detection and conspicuity depends on the radiation dose level. At low radiation doses, low–contrast objects are invisible, regardless of reconstruction technique.