"Usually what they're asking is if [3-D mammograms] squeeze the breasts as tight," Shockney says. "That's not a good reason to select it." (It would also be a disappointment, since anyone opting for 3-D still must get the 2-D squeeze anyway.)
The Hopkins Breast Center doesn't yet have a 3-D unit, but it does have a room reserved for it, Shockney says. The machine, called the Selenia Dimensions 3-D system, is marketed by Hologic and was developed at Massachusetts General Hospital in Boston.
Shockney says that the most important thing for women is not whether they opt for 3-D, but that they get a screening in the first place. "We have the ability to save their life and save their breasts when we catch things early."