"Screening mammography performed once a year resulted in less advanced stage disease in patients diagnosed with breast cancer," Dr. Moorman said.
The study also found that women who had biennial screening tended to have more aggressive treatment, such as chemotherapy and dissection of the axillary lymph nodes, where cancer from the breast often spreads.
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"There were trends toward less frequent axillary lymph node dissection and less frequent use of chemotherapy with annual screening compared with biennial screening," Dr. Moorman said.
Dr. Moorman hopes the findings of the study will help allow informed decision-making regarding screening frequency.
Co-authors are Akshat C. Pujara, M.D., Michelle D. Sakala, M.D., Colleen H. Neal, M.D., Katherine E. Maturen, M.D., Leigh Swartz, M.D., Heidi Egloff, M.D., and Mark A. Helvie, M.D.
About RSNA
RSNA is an association of over 53,400 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, Ill.
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