Computed Radiography (CR) is an indirect type of imaging system. The receptor used within a CR cassette is called a photostimulable imaging plate and it absorbs the radiation exiting the patient. The exposed plate is processed in a CR reader, where the absorbed energy is extracted. The information stored in the CR imaging plate must be processed before viewing can occur. The resultant latent image data is converted from an analog to a digital signal and a digital image is created. Computed Radiography x-ray systems predominantly use conventional x-ray tube systems.[1]


  1. Conference of Radiation Control Program Directors, Inc. "COMPUTED RADIOGRAPHY (CR) AND DIGITAL RADIOGRAPHY (DR) STATE X-RAY INSPECTION PROTOCOL--Publication No. E-10-2 " Jan 2010.