Three-dimensional computed tomography (CT) colonography, also known as virtual colonoscopy, is more sensitive and less invasive than conventional colonoscopy in screening average-risk patients, according to research presented today at the 89th Scientific Assembly and Annual Meeting of the Radiological Society of North America (RSNA).
The new technology allows radiologists to obtain 3-D images from different angles, providing a "movie" of the interior of the colon without having to insert a scope.
"I believe virtual colonoscopy will eventually join conventional colonoscopy as a major component of colorectal cancer screening in the U.S.," said lead author Perry J. Pickhardt, M.D., currently an associate professor of radiology at University of Wisconsin Medical School in Madison.
Maureen Morley | EurekAlert!
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MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
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The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
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