The study found that six-month short-interval follow-up examinations had an 83% sensitivity, which is similar to the sensitivity of other diagnostic mammograms, said Erin J. Aiello Bowles, MPH, lead author of the study from the Group Health Center for Health Studies. High sensitivity means identifying a high proportion of “true positives” (actual cancer cases) and a low proportion of “false negatives” (cases mistakenly deemed benign).
The study included 45,007 initial short-interval follow-up mammograms. “Short-interval follow-up mammograms are done to monitor for changes in ‘probably benign’ breast lesions (findings seen on mammograms that have a very low probability of being cancer). Because the probability of cancer is so low, we don’t want to put the patient through an unnecessary biopsy, which is an invasive procedure that increases both patient anxiety and medical costs,” said Aiello Bowles. “At the same time, we want to closely monitor these patients, because changes in ‘probably benign’ lesions occasionally mean cancer, and we want to detect the cancers as early as possible,” she said. In the study, 360 women with “probably benign” lesions were diagnosed with breast cancer within six months; and 506 women were diagnosed with cancer within 12 months (altogether about one in 100 of the “probably benign” lesions), Aiello Bowles said.
“The Breast Imaging-Reporting and Data System (BI-RADS) recommends that women with a BI-RADS category 3 (probably benign) lesion get a six-month diagnostic mammogram, with follow-up continued for the next two to three years until long-term stability is demonstrated,” said Dr. Edward Sickles, a coauthor and radiologist involved in the study from the University of California San Francisco. “This study emphasizes that radiologists and patients need to follow that recommendation,” he said.
Necoya Tyson | EurekAlert!
Self-organising system enables motile cells to form complex search pattern
07.05.2019 | Westfälische Wilhelms-Universität Münster
Mouse studies show minimally invasive route can accurately administer drugs to brain
02.05.2019 | Johns Hopkins Medicine
A new assessment of NASA's record of global temperatures revealed that the agency's estimate of Earth's long-term temperature rise in recent decades is accurate to within less than a tenth of a degree Fahrenheit, providing confidence that past and future research is correctly capturing rising surface temperatures.
The most complete assessment ever of statistical uncertainty within the GISS Surface Temperature Analysis (GISTEMP) data product shows that the annual values...
Physicists at the University of Basel are able to show for the first time how a single electron looks in an artificial atom. A newly developed method enables them to show the probability of an electron being present in a space. This allows improved control of electron spins, which could serve as the smallest information unit in a future quantum computer. The experiments were published in Physical Review Letters and the related theory in Physical Review B.
The spin of an electron is a promising candidate for use as the smallest information unit (qubit) of a quantum computer. Controlling and switching this spin or...
Engineers at the University of Tokyo continually pioneer new ways to improve battery technology. Professor Atsuo Yamada and his team recently developed a...
With a quantum coprocessor in the cloud, physicists from Innsbruck, Austria, open the door to the simulation of previously unsolvable problems in chemistry, materials research or high-energy physics. The research groups led by Rainer Blatt and Peter Zoller report in the journal Nature how they simulated particle physics phenomena on 20 quantum bits and how the quantum simulator self-verified the result for the first time.
Many scientists are currently working on investigating how quantum advantage can be exploited on hardware already available today. Three years ago, physicists...
'Quantum technologies' utilise the unique phenomena of quantum superposition and entanglement to encode and process information, with potentially profound benefits to a wide range of information technologies from communications to sensing and computing.
However a major challenge in developing these technologies is that the quantum phenomena are very fragile, and only a handful of physical systems have been...
29.04.2019 | Event News
17.04.2019 | Event News
15.04.2019 | Event News
24.05.2019 | Physics and Astronomy
24.05.2019 | Medical Engineering
24.05.2019 | Life Sciences