Background and Identification
As opposed to more traditional film-based x-ray systems, modern computed radiography (CR) and digital radiography (DR) use photosensitive cassettes (CR) or panels (DR) to produce a digital image to be examined by a medical professional. They effectively eliminate the consumables that are involved with screen-film radiography and can produce a much higher resolution image, often much quicker than traditional methods. The resulting images can also be post-processed if needed.
Key differences between CR and DR systems include:
- CR systems still use photosensitive screens to capture the image into a CR cassette, which is then digitized into a reader.
- DR systems use a detection panel that is digitized in real-time by a matrix of photodiodes, producing an image faster than any other method.