Enhanced imaging of microcalcifications in digital breast tomosynthesis through improved image‐reconstruction algorithms

PURPOSE: We develop a practical, iterative algorithm for image-reconstruction in under-sampled tomographic systems, such as digital breast tomosynthesis (DBT). METHOD: The algorithm controls image regularity by minimizing the image total pvariation (TpV), a function that reduces to the total variation when p=1.0or the image roughness when p=2.0 Constraints on the image, such as image positivity and estimated projection-data tolerance,...