dr is digital radiography.
Digital radiography (digital radiography, DR) is also the development of a new digital imaging technology, and computerized radiography (CR) has a similar purpose, but the basic principles and structure are different. DR is based on digital fluorography (digital fluorography, DF). DR is based on digital fluorography (DF), which uses an image intensifier tube as an information carrier to accept X-ray information through the human body, which is then digitized after being captured by a video camera and converted into a digital signal.
Different from CR, except for the difference of information carrier, it does not match with other equipment and need to use specialized equipment, CR can be in any X-ray imaging equipment with the imaging plate to capture information. DR, like CR, can do a variety of image post-processing, image transmission and storage.
dr clinical significance
Computerized radiography system due to its own characteristics, mainly used and traditional X-ray machine to match, to achieve the digitalization of flat film information. Digital radiography system can be used as X-ray flat film display, but also can implement the gastrointestinal system, other systems and angiography. However, due to the digital radiography system can not be matched with multiple X-ray machine application limitations and the price of a single machine is relatively expensive, in the long term, computed radiography and digital radiography system will be to replace the conventional X-ray imaging modality complementary.
Computerized radiography and digital radiography system of a *** with the advantages of a much larger than conventional radiography equipment X-ray sensitivity and dynamic range, and therefore can be more significantly reduce the X-ray dose in the examination, which is X-ray sensitive people, such as pregnant women, children and the implementation of X-ray census applications have some significance.
Refer to Baidu Encyclopedia-Digital Radiography