Perlong Medical was established in 1993, n Nanjing, the capital of Jiangsu province of China. It specializes in R&D, manufacturing and marketing of various kinds of equipment, including medical equipment, clinical diagnosis reagents and fast diagnosis products.
Nowadays ,there are CR and DR in the world market, and maybe you are little confused about the difference of this two machines.
Medical Imaging Technology is one of the most active areas of research in the medical diagnostic radiology , X-ray imaging technology is a major medical imaging technology . Digital X-ray imaging technology CR , DR recent years developed very rapidly, so that people meet diagnostic image become possible to use than the previous low- dose X-ray radiation . The CR and DR are briefly as follows , in order to improve the understanding of both ., CR and DR working principle
CR and DR working principle.
1.CR (ComputedRadiography), also known as indirect digital X-ray imaging technology, the main principle is the use of storage phosphor imaging, Fuji, Japan's first launched in 1981 for the clinical application of CR, Kodak, Germany AGFA company then launched the CR product, which uses the phosphor crystals constituting an imaging plate (Plated) i.e. IP plate absorbs the X-ray information, IP plate photosensitive latent image is formed, and then scanned into a digitized signal into a computer system to perform image processing. IP board looks like an ordinary intensifying screens by the substrate and the phosphor material, the outer layer add a layer of protection, then the cassette loading protection, like ordinary X-ray cassette take film. IP board in the X-ray exposure after the X-ray image information is stored in the crystal, and then IP plate to the readout mounted explicit, the read out X-ray image information, fed into the computer system. The image information is read out and displayed after read out, the information stored in the IP board disappear, and the imaging plate can be reused. Advantages: (1) CR exposure dose compared with conventional X-ray photography, exposure agent is smaller than the conventional tablets; (2) the photographic conditions requiring lower than the film, almost no waste film; (3) CR X-ray equipment without going through a big change, no change in the filmmaking process and the original X-ray film photography; (4) image processing functions, can improve the accuracy and range of diagnostic imaging.
DR (Digital radiography), 2.DR works, also known as digital photography, early DR intensifying screens and optical lens coupled CCD the (digitized coupler) to get a digital X-ray image, adding a similar image intensifier CCD working methods, this technology is considered to be the first generation of DR technology.
Medical Imaging Technology is one of the most active areas of research in the medical diagnostic radiology , X-ray imaging technology is a major medical imaging technology . Digital X-ray imaging technology CR , DR recent years developed very rapidly, so that people meet diagnostic image become possible to use than the previous low- dose X-ray radiation . The CR and DR are briefly as follows , in order to improve the understanding of both ., CR and DR working principle
CR and DR working principle.
1.CR (ComputedRadiography), also known as indirect digital X-ray imaging technology, the main principle is the use of storage phosphor imaging, Fuji, Japan's first launched in 1981 for the clinical application of CR, Kodak, Germany AGFA company then launched the CR product, which uses the phosphor crystals constituting an imaging plate (Plated) i.e. IP plate absorbs the X-ray information, IP plate photosensitive latent image is formed, and then scanned into a digitized signal into a computer system to perform image processing. IP board looks like an ordinary intensifying screens by the substrate and the phosphor material, the outer layer add a layer of protection, then the cassette loading protection, like ordinary X-ray cassette take film. IP board in the X-ray exposure after the X-ray image information is stored in the crystal, and then IP plate to the readout mounted explicit, the read out X-ray image information, fed into the computer system. The image information is read out and displayed after read out, the information stored in the IP board disappear, and the imaging plate can be reused. Advantages: (1) CR exposure dose compared with conventional X-ray photography, exposure agent is smaller than the conventional tablets; (2) the photographic conditions requiring lower than the film, almost no waste film; (3) CR X-ray equipment without going through a big change, no change in the filmmaking process and the original X-ray film photography; (4) image processing functions, can improve the accuracy and range of diagnostic imaging.
DR (Digital radiography), 2.DR works, also known as digital photography, early DR intensifying screens and optical lens coupled CCD the (digitized coupler) to get a digital X-ray image, adding a similar image intensifier CCD working methods, this technology is considered to be the first generation of DR technology.
Now widely used DR is mainly flat detection port (FPD) the image signal generated by the X-ray scanning and direct readout of the imaging principle is the first X-ray signal is converted into visible light by photoelectric diode alginic film ( TFT) to be aggregated, and is directly read out by a dedicated read-out circuit to send a computer system for processing. The currently flat panel probing the mouth is divided into two types of indirect conversion of amorphous silicon for digital photography (IDDR) and amorphous selenium direct conversion of digital photography (DDR).
DR's composition generally include a high voltage generator, X-ray tube and bracket, flat panel probing mouth, system control port, etc.. Compared with conventional X-ray signal, advantages, in addition to having the advantages of the CR, DR system is the X-ray detection with tablet receiving apparatus instead of a conventional intensifying screen and film, digitized X-ray signal, the dynamic range of the signal, high spatial resolution and density resolution, low dose exposure may at any time for doctors to view X-ray image. In almost no loss of image quality, image transmission, storage and amplification processing and imaging speed is much faster than the traditional film X-ray system.
To sum up, That is the basic information about the CR and DR, and a hot product, for more information, please go to our website:www.perlong.com/english/or send us the email：overseas@perlong.com.cn
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