Toward optimal X-ray flux utilization in breast CT
  A realistic computer-simulation of a breast computed tomography (CT) system and subject is constructed. The model is used to investigate the optimal number of views for the scan given a fixed total X-ray fluence. The reconstruction algorithm is based on accurate solution to a constrained, TV-minimization problem, which has received much interest recently for sparse-view CT data. 
Jakob H. Joergensen, Per Christian Hansen, Emil Y. Sidky, Ingrid S.   Reiser, and Xiaochuan Pan
physics.med-ph