CHICAGO, Dec. 3 -- Three-dimensional computed tomography (CT) colonography, also known as virtual colonoscopy, is as sensitive as and less invasive than conventional colonoscopy in screening average-risk patients, according to research presented at the Radiological Society of North America's (RSNA) annual meeting this week. 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...Read full articleRelated content from Photonics MediaArticlesPhoton Detector Breathes New Life Into CT ImagingThe Food and Drug Administration has cleared a photon-counting detector (PCD)-based CT system for clinical use. The system, which has been under development by a team at the Mayo Clinic for a decade,...Photonics.com 8/16/2022WebinarsBrillouin Microscopy for Cell and Tissue ImagingThe interaction between photons and acoustic phonons within materials, first described by Leon Brillouin, has been widely investigated to characterize the mechanical and physical properties of...Photonics.com 5/15/2024Advancements in Photoacoustic Imaging Brighten the Next DecadePhotoacoustic imaging is a hybrid imaging modality that combines both optics and ultrasound. With rich intrinsic optical contrast and high ultrasound resolution at depth, photoacoustic imaging has...Photonics.com 1/22/2021Photonic Integrated Recurrent Neural Network Based on Frequency MultiplexingReservoir Computers (RCs) are brain-inspired algorithms based on recurrent neural networks where only output weights are tuned, while internal weights remain untrained. VLC Photonics recently...Photonics.com 1/12/2023Aspheres: Tolerancing for High PerformanceJoin us for a FREE webinar – Wednesday, June 25, 2014, 1 - 2 p.m. EDT Dan Bajuk is Technical Director of ZYGO’s Extreme Precision Optics group in Richmond, California. He has 40...Photonics.com 6/25/2014Photonics Dictionary Termsliquid gateAn immersion liquid used to treat polarizing filters to eliminate the effects of surface variations and to minimize the optical path difference between that part of the spectrum that passes through...Photonics Dictionaryguide factorA factor derived by equating the incident light on the subject to the required incident light for suitable photography. The lamp-subject-distance then is multiplied by the aperture and solved in...Photonics Dictionarystylus indicator alignmentA method used in surface quality testing for accurate positioning and rotation of metal spheres about an axis or fixed point in space that involves a sliding contact between the indicator and tip and...Photonics Dictionaryoptical data storageThe storage of information via optical means, primarily employing a low-power laser to inscribe data on a photosensitive surface as pits or phase differences and to read such data via reflected light...Photonics DictionaryPhotonics Buyers' Guide CategoriesSpectropolarimetersA spectropolarimeter is an instrument for plotting the rotatory dispersion of a substance at different wavelengths.Multimode, Single-Fiber Fiber Optic ConnectorsWavelength MetersA wavelength meter is a device that measures the wavelength of an electromagnetic wave.Motor Controllers and DriversCompaniesFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' GuideOZ Optics LimitedEstablished in 1985, OZ Optics is a leading worldwide supplier of fiber optic components, test equipment and sensors. OZ Optics manufactures its products in three locations, Ottawa (Canada),...Photonics Buyers' GuideOhara CorporationOHARA manufactures more than 130 environmentally safe optical glass types, free of both lead and arsenic. More than 300 tons of optical glass are melted per month, available in the following forms of...Photonics Buyers' GuideLaCroix Precision OpticsThe LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have guided LaCroix Precision Optics to become the premier precision optics...Photonics Buyers' Guide