Hologic Inc. and Icad Inc., makers of medical imaging equipment, fell in New York trading after a study found that breast cancer screening performed with computer-aided technology failed to find more tumors.
The technology, approved in the U.S. in 1998, is used in 90 percent of mammograms performed each year at a cost of more than $400 million, according to lead researcher Constance Lehman, director of breast imaging and co-director of the Avon Foundation Comprehensive Breast Evaluation Center at Massachusetts General Hospital in Boston. That should end, she said.
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