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'Stereo' Mammography Takes Breast Imaging to a New Dimension
Date:11/28/2007

indings were detected by the combined mammography procedures and were referred for additional diagnostic testing, including biopsy when indicated. Of those, 109 were determined to be true lesions. Standard mammography missed 40 of the 109 lesions while the stereoscopic exam failed to detect 24.

"Our early results suggest that stereo digital mammography could contribute to the earlier detection of cancer," Dr. Getty said. "A small percentage of the additional lesions missed by standard mammography but detected by stereoscopic mammography will turn out to be cancerous."

Of the 259 findings, 150 were false positives, meaning further testing revealed that no abnormality was present. Standard mammography yielded 103 false positives; stereo mammography yielded 53.

"In our study, stereo digital mammography reduced false positives by 49 percent," said Dr. Getty. "This could have a significant impact by cutting in half the number of women who are needlessly recalled for additional diagnostic work-ups, resulting in a large savings in cost and patient anxiety."

By the end of the clinical trial this December, a total of 1,500 women at elevated risk of developing breast cancer will have received both the stereo and standard digital mammography screening exams.

According to Dr. Getty, offering wide-scale stereoscopic digital mammography would entail minor changes to digital mammography equipment and software.

Co-authors of the paper are C.J. D'Orsi, M.D., R.M. Pickett, Ph.D., M.S. Newell, M.D., K.R. Gundry, M.D., S.F. Roberson, M.D., S.R. Bates, M.D., et al.

Dr. Getty is employed by BBN Technologies. BBN Technologies and Planar Systems developed the stereo display workstation used in the trial.

AT A GLANCE

-- A new mammography technology allows radiologists to detect more cancers

with fewer false positives.

-- Stereoscopic digital mammography produces three-dimensional, in-depth

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SOURCE Radiological Society of North America
Copyright©2007 PR Newswire.
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