U.S. OKs Hologic 3-D breast scan, radiation unclear

WASHINGTON (Reuters) - U.S. health officials have approved Hologic Inc's three-dimensional (3-D) mammogram system in hopes that it may help doctors better screen and diagnose breast cancer, even though women may be exposed to more radiation.

The device, an upgrade to the company's already approved two-dimensional (2-D) system, offers physicians a more detailed look at the breast to see any possible anomalies, the Food and Drug Administration said on Friday.