Use of a Total Variation Minimization Iterative Reconstruction Algorithm to Evaluate Reduced Projections during Digital Breast Tomosynthesis

Figure 4

At right, the full width at half-maximum (FWHM) and contrast-to-noise ratio (CNR) characteristics caused by differences in parameters [TV hyperparameter (), iteration number for TV-steepest descent ()] in the ASD-POCS algorithm (error bar represents the standard error). At left, the root-mean-square error (RMSE) and universal image quality index (QI) characteristics caused by differences in the numbers of iterations in each reconstruction algorithm.