Grid and slot scan scatter reduction in mammography: comparison by using Monte Carlo techniques.

Purpose: To evaluate a comprehensive array of scatter cleanup techniques in mammography by using a consistent methodology.

Materials And Methods: Monte Carlo techniques were used to evaluate the Bucky factor (BF) and the contrast improvement factor (CIF) for linear and cellular grids and for slot scan and scanning multiple-slot assembly (SMSA) systems.

Results: For a 28-kVp molybdenum anode-molybdenum filter spectrum with a standard detector and a 6-cm-thick 50% adipose-50% glandular breast phantom, slot scan techniques delivered an ideal BF.