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Combined digital screening improves the diagnosis of breast cancer

June 6, 2018 12:16

According to a study published in the journal Radiology, digital mammography in combination with tomosynthesis detects 90 percent more cases of breast cancer than just digital mammography.

Digital tomosynthesis - this imaging technique, which uses a radiation mammography with the lowest dose for the three-dimensional reconstruction of the breast. In studies comparing the two technologies in the same group of women, tomosynthesis was more sensitive than digital mammography. Despite the best sensitivity, some experts warn that there is a possibility to detect cancers that would never become clinically significant, a phenomenon known as overdiagnosis.

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To examine the sensitivity of tomosynthesis and determine when additional screening is needed, the researchers compared the results of 9777 women who were tomosynthesis and digital mammography.

When combined digital mammography and tomosynthesis 8.6 cancers found in 1,000 cases, which is almost twice (4.5 to 1000) than diagnosis only using mammography. Using tomosynthesis detected 72 out of 80 types of cancer, who had previously been found in a combined way.

"Tomosynthesis and digital mammography is much more sensitive than a single digital mammography," - says Pierpaolo Pattasini, principal investigator, MD. Although higher sensitivity tomosynthesis makes it a logical choice for the programof breast cancer screening, Paolo Giorgio Rossi, co-author of the study, says that more research is needed to assess the benefits of forecasting and reduce mortality from breast cancer. According to Rossi, the extra time for reading and analysis of images is another aspect of the technology, which requires consideration. "To increase public-time screening for the study and analysis of the images will be a big problem, - he says -. The introduction of tomosynthesis in screening programs would require a rethinking of protocols and technologies for reducing or eliminating the additional cost."

The new study is a preliminary analysis of the study Reggio Emilia Tomosynthesis (RETomo), a larger study in which experts will examine the interval cancers detected between screenings, and total prevalence of the cancer. To get a more accurate and reliable assessment of these results, researchers have begun a series of studies of tomosynthesis in Europe.

"As soon as we have new information, implications for screening may even be more than a simple transition from digital mammography tomosynthesis to -. Dr. Ross says -Naprimer, it would be advisable to use longer intervals between readings."

Source: https://medicalxpress.com/news/2018-06-breast-cancers-combined-digital-screening.html

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