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 8/16/2022WebinarsSensor Advancements and How They Affect the Selection of OpticsRecent advancements in imaging sensors have allowed machine vision systems to achieve high levels of performance that were previously unattainable. However, these sensor advancements complicate the...Photonics.com 7/20/2022Laser Measurement Solutions for Materials Microprocessing ApplicationsThose who use lasers in materials microprocessing applications — such as drilling via holes in PCBs, performing OLED display lift-off, and cutting smartphone cover glass — are faced with...Photonics.com 6/15/2022Quantum Dots Are Making Displays Brighter and Photomedicine BetterIf you are interested in learning how QDs are currently used in displays and how the same materials are being engineered to yield even brighter, more efficient, better colors for future displays,...Photonics.com 4/23/2019How Open Pilot Line Deployments Are Advancing Laser-Based Additive ManufacturingAmong metal additive manufacturing technologies, laser-based direct energy deposition (LB-DED) processes, in which a focused laser source is used to melt-fuse materials as they are deposited, are...Photonics.com 1/10/2022Photonics Dictionary Termsburn-throughA detector's ability to sense an object on the opposite side of a thin but opaque barrier such as cardboard.Photonics DictionaryLambert's absorption lawTransmittance of a solution, or internal transmittance of a transparent solid, is an exponential function of the thickness of the layer.Photonics Dictionaryimmersion oilAn oil required by oil-immersion objectives that is applied between the exterior of the objective lens and a cover glass or appropriate specimen.Photonics Dictionarymirror mountA mirror mount is a mechanical device used to secure and precisely position mirrors in optical systems. Mirrors are essential components in optical setups for reflecting light or redirecting laser...Photonics DictionaryPhotonics Buyers' Guide CategoriesHigh-Resolution LensesHyperspectral Imaging CamerasA hyperspectral imaging camera is a sophisticated imaging device capable of capturing and processing data across a wide range of wavelengths within the electromagnetic spectrum, typically from UV to...Fiber Optic Spectrum AnalyzersStreak CamerasA camera streak is a high-speed cine camera used to record, on a continuously moving film, very brief events such as a flash of light. The image is recorded as a continuous image, not as a series of...CompaniesFOCtek 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' 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' 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' 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