3D mammograms catch cancer earlier

Three-dimensional mammograms can catch breast cancer earlier and reduce false positives, a new study has found.

The American study found the technique - known as tomosynthesis - helps increase breast cancer detection rate when used alongside traditional 2-D mammograms.

And the combination of the two methods also decreases the proportion of patients called back for more tests, the study published in JAMA found.

The combination is especially good at finding small invasive cancers that are most likely to be lethal.

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