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 8/16/2022WebinarsOptical Filters: Application and Design ConsiderationsOptical filters can discretely transmit or reject specific wavelengths or ranges of wavelengths of light. Utilizing this capability in photonics-based instruments creates the need for a better...Photonics.com 4/23/2024New Advances in the Use of Molecular Emission Created by LIBS for Fluoride Imaging in MedicineLaser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and laser-induced breakdown spectroscopy (LIBS) are becoming increasingly important tools for analysis and imaging in medicine....Photonics.com 4/19/2023Identifying and Controlling Defects in 2D Metal DichalcogenidesSemiconducting two-dimensional transition metal dichalcogenides (TMDs) such as MoS2, MoSe2, WSe2, and WS2 hold great promise for many novel applications, and recent years have witnessed tremendous...Photonics.com 1/21/2021Minimizing Interferometric Measurement Variations During Optical ManufacturingOptical manufacturing has become increasingly challenging as specifications tighten for wavefronts, form, slopes, and mid-spatial frequency features. Interferometers are essential tools to control...Photonics.com 1/11/2023Photonics Dictionary Termsplanar magnetronA device used in the sputtering of thin films, in which a magnet system on the back of the cathode deflects the electrons, lengthening the ionization path. The accelerated ions transfer their...Photonics Dictionaryerecting systemLenses or prisms that serve to erect the image; i.e., to bring the image upright after it has been inverted by the objective.Photonics Dictionaryphotoconductive cellPhotonics Dictionaryknife-edge scanning microscopeAn imaging device originally created to image whole mouse brain volumes at microscopic resolution. The main component of the instrument is an automated microtome and microscope capable of producing...Photonics DictionaryPhotonics Buyers' Guide CategoriesUsed/Surplus LasersRear-Projection ScreensPockels CellsA Pockels cell is a device containing an electro-optic crystal and using the Pockels effect. A voltage applied across the crystal generates birefringence, causing plane-polarized light propagating...Visible CoatingsCompaniesFOCtek 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' 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' 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' Guide