Hologic announced the publication of three new studies supporting the use of Hologic's 3D mammography technology in breast cancer screening. The studies included the Oso study, the UPMC study, and the Massachusetts General Hospital study. The studies have validated the benefits of Hologic's 3D mammography technology in screening: a simultaneous increase in cancer detection rates, for invasive cancers in particular, and a significant reduction in unnecessary patient recalls. Some potential users have expressed concern about the increased dose of a combined conventional 2D and 3D mammography exam. While the radiation dose from the combined 2D and 3D exposure is within the U.S. guidelines for mammography, Hologic now offers customers the low dose C-View software option which generates the 2D image from the 3D mammography image slices thereby eliminating the need for a separate 2D exposure.