molecular Breast Imaging Considerably Improves Cancer Detection in Women with Dense Breasts
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A new study reveals that combining molecular breast imaging (MBI) with 3D mammography more than doubles the ability to detect cancer in women with dense breast tissue, a condition affecting nearly half of all women in the U.S. and known to obscure cancerous growths on customary mammograms.
Early and accurate detection remains the cornerstone of successful breast cancer treatment. Though,dense breast tissue presents a critically important challenge,as it can mask the presence of tumors. Researchers at Mayo Clinic have now demonstrated a promising solution to improve screening accuracy for this vulnerable population.
The Challenge of Dense Breast Tissue
“A mammogram is an crucial screening test that has been proven beneficial,” explains a leading researcher on the project. “But we’ve learned that in areas of dense breast tissue, breast cancers can hide from detection on a mammogram until they reach an advanced size. our research focuses on detecting the most lethal cancers, which can include invasive tumors that grow quickly. If thes are detected earlier, we likely can save more lives.”
The study, published in Radiology, involved 2,978 women between the ages of 40 and 75 with dense breasts. Participants underwent two annual screenings utilizing both MBI and digital breast tomosynthesis (3D mammography).
MBI and 3D Mammography: A Powerful Combination
The results showed that breast radiologists were able to identify significantly more cancerous tissue when reviewing images from the combined MBI and mammography screenings, compared to using either technique alone. This suggests that MBI effectively complements mammography, especially in cases where dense tissue complicates interpretation.
“MBI is a fairly simple, low cost and safe option for women who have dense breasts and are seeking a supplemental screening test,” the researcher added.
Currently, MBI combined with mammography is available at approximately 30 facilities across the United States, including locations within the Mayo Clinic Health System in La Crosse and Eau Claire, Wisconsin, and also Mayo Clinic campuses in Rochester, Phoenix, and Jacksonville, Florida.
Addressing Callback Rates and Improving Efficiency
While increased screening inevitably leads to a higher number of patients being called back for additional testing, researchers found this rate decreased substantially over time. In the first year of screening, 279 more women were called back due to the addition of MBI. However, this number was halved in the second round of screenings, indicating that the initial increase in callbacks stabilizes as the technique is refined and radiologists become more familiar with interpreting the results.
Looking ahead, the research team is focused on streamlining the MBI process. They are developing an algorithm designed to reduce image capture time from 40 minutes to 20 minutes or less, enhancing patient
Here’s a news report answering the “Why, Who, What, and How” questions:
Why: The study was conducted to address the challenge of detecting breast cancer in women with dense breasts, where traditional mammograms can be less effective. The goal was to improve early and accurate detection, ultimately saving lives.
Who: Researchers at the Mayo Clinic led the study,involving 2,978 women aged 40-75 with dense breast tissue. A leading researcher on the project provided key insights.
What: The study demonstrated that combining molecular breast imaging
