“Radiologists appear to perform better with digital breast tomosynthesis and have higher accuracy on screening 3D mammograms than 2D mammograms across U.S. practices,” Dr. Lee noted. “As this becomes the mainstay screening modality, we hope to see improved screening outcomes for women.”
A total of 896,101 women undergoing 2,301,766 screening exams—458,175 DBT and 1,843,591 2D digital mammography—were included in the retrospective study. The abnormal interpretation rate was 8.3%, cancer detection rate was 5.8 per 1,000 exams, sensitivity was 87.4%, and specificity was 92.2%.
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With DBT, 97.6%, 91.8%, 75.0%, and 74.0% of assessed radiologists achieved the recommended acceptable performance ranges for cancer detection rate, sensitivity, abnormal interpretation rate and specificity, respectively.
Dr. Lee notes that these benchmarks are also very important for the emerging field of artificial intelligence.
“Any new AI tools aimed at improving mammography accuracy will have to revise their own performance goals based on the improved radiologist performance with DBT,” he said.
“National Performance Benchmarks for Screening Digital Breast Tomosynthesis: Update from the Breast Cancer Surveillance Consortium.” Collaborating with Dr. Lee were Linn Abraham, M.S., Diana L. Miglioretti, Ph.D., Tracy Onega, Ph.D., Karla Kerlikowske, M.D., Janie M. Lee, M.D., Brian L. Sprague, Ph.D., Anna N. A. Tosteson, Sc.D., Garth Rauscher, Ph.D., Erin J. A. Bowles, M.P.H., Roberta M. diFlorio-Alexander, M.D., and Louise M. Henderson, Ph.D., for the Breast Cancer Surveillance Consortium.
In 2023, Radiology is celebrating its 100th anniversary with 12 centennial issues, highlighting Radiology’s legacy of publishing exceptional and practical science to improve patient care.
Radiology is edited by Linda Moy, M.D., New York University, New York, N.Y., and owned and published by the Radiological Society of North America, Inc. (https://pubs.rsna.org/journal/radiology)
RSNA is an association of radiologists, radiation oncologists, medical physicists and related scientists promoting excellence in patient care and health care delivery through education, research, and technologic innovation. The Society is based in Oak Brook, Illinois.
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