Computed Radiography (CR)
Computed radiography (CR), the technology used in the IDEXX-CR™ 1417 System, uses a flexible plate, coated with a photostimulable phosphor (PSP), that is enclosed in a cassette to generate the digital image. The cassette functions similarly to conventional film-screen systems in that they can be used in existing x-ray machines, both table-top and Bucky tray, and in portable x-ray configurations.
When an x-ray is taken, the phosphor plate absorbs the light energy and holds it as a latent image. The cassette is then removed from the x-ray table and inserted into a scanner where the interior phosphor plate is mechanically removed from the cassette, and scanned by a laser. The laser transfers the trapped photon energy into an image that is digitized and stored electronically. After the electronic image is processed, the phospher plate is automatically erased by exposure to bright white light before reinsertion into the cassette. The entire process takes less than 60 seconds.
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