This oral history collection brings together interviews with the individuals involved in inventing, researching, and commercializing digital mammography and breast tomosynthesis at DuPont, Sterling and Hologic. This collection of interviews deals with the founding of Hologic and the development of 3D mammography and breast tomosynthesis. It also covers the sale and consolidation of other companies under Hologic; development of new medical imaging machines; certification of new medical devices by the FDA and equivalent international bodies; negotiations with the medical insurance industry; and selling medical devices and technical support to individual hospitals, clinics, healthcare systems, and other care providers.