For Release: May 5, 2014
Breast tomosynthesis in the diagnostic workup for one- or two-view focal asymmetry detected at screening mammography resulted in less use of ultrasound, fewer biopsies, and higher positive predictive value for cancer than when diagnostic exams involved only 2D mammography, according to a study conducted at the University of Virginia.
“Tomosynthesis has been evaluated in screening populations and been shown to decrease recall rates,” said researcher Brandi Nicholson, “but studies in the diagnostic setting are lacking.”
Five hundred thirty two patients who were recalled for a focal asymmetric density discovered at screening were analyzed across three categories: women recalled prior to the availability of tomosynthesis in the practice (PT), those who did not have tomosynthesis at diagnostic evaluation after it was available (NT), and those who had diagnostic tomosynthesis (YT). There were 238 patients in the PT group, 145 in the NT group, and 149 in the YT group.
The researchers found that additional full views and ultrasound were performed significantly less frequently in the YT group than in both the PT and NT groups. They also found that the PPV was increased for the YT group compared to both the PT and NT groups.
Dr. Nicholson will present the study on May 5 at the 2014 ARRS Annual Meeting in San Diego, CA.
Founded in 1900, ARRS is the first and oldest radiology society in the United States. The society was originally named the American Roentgen Society after its founder, Wilhelm Roentgen, who discovered the x-ray. ARRS has been an international forum for progress in radiology and is dedicated to the goal of the advancement of medicine through the science of radiology and its allied sciences. The goal of the ARRS is maintained through an annual scientific and educational meeting and publication of the American Journal of Roentgenology or AJR. ARRS is located in Leesburg, VA.