Women who are considering getting a mammogram may be curious about a new screening tool called 3-D digital mammography, which takes images of the breasts from many angles. Some research indicates that the technology may have benefits over standard 2-D screening.
A trial launched by the National Cancer Institute in October 2017 may help answer questions about the strengths and weaknesses of 3-D mammography—and who is most likely to benefit from its use. The study, called the Tomosynthesis Mammographic Imaging Screening Trial (TMIST), will enroll 165,000 women ages 45 to 74 who are already planning to get mammograms and randomly assign them to either 3-D or 2-D digital mammography for five years (either annually or every other year, depending on several criteria). Researchers will follow participants through 2028.
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