In an editorial published in the April 19 issue of the Annals of Internal Medicine, Indiana University School of Medicine gastroenterologist Thomas Imperiale, M.D., says virtual colonoscopy may become one of the most valuable assessment tools available for colorectal cancer screening.
"I expect a lot from a screening test — zero risk, high sensitivity, high specificity, reasonable ease and convenience, and cost effectiveness," said Dr. Imperiale, who is professor of medicine and Regenstrief Institute research scientist. "That may be a lot to ask, but I think CT colonography (also known as virtual colonoscopy) has the potential to meet all of these criteria, especially if the need to take a laxative preparation can be eliminated."
"Colonoscopy is currently used as a screening test for colorectal cancer, but it didnt start out as one," he explained. "The cumulative potential for side effects from the laxative preparation, the need for conscious sedation, lost sleep, time lost from work, the need to arrange for someone to drive the patient home, and risk for perforation exceed my threshold for what a good screening test should be."
Cindy Fox Aisen | EurekAlert!
Improving memory with magnets
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The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
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