ROCHESTER, Minn. – For women with dense breast tissue, supplementing standard mammography with a new imaging technique called molecular breast imaging (MBI) can lower the cost of diagnosis of breast cancers, according to a Mayo Clinic study published in the American Journal of Roentgenology (AJR).
Researchers at the Mayo Clinic Center for Individualized Medicine found that adding MBI to mammography of women with dense breast tissue increased the costs of diagnosis 3.2 times, compared to costs of mammography alone, and nearly quadrupled the rate of cancer detection. Because the supplemental test found more cancer, screening with a combination of mammography and MBI saved $8,254 per cancer detected.
While mammography is still the standard tool for widespread breast cancer screening, it is now known to perform less effectively in women with dense breast tissue. Both tumors and normal dense breast tissue can appear white on a mammogram, making tumors hard to detect. Nearly half of all women over age 40 have mammograms classified as “dense,” according to Carrie Hruska, Ph.D., a medical physicist in the Mayo Clinic Department of Radiology and the study’s lead author. Supplemental screening techniques like MBI address a significant need for better cancer detection methods for this patient population.
Journalists: Sound bites with Dr. Hruska are in the downloads.
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