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Digital - CR

Medical | Podiatry | Chiropractic | Veterinary

CR was the first general purpose digital x-ray technology invented and is still the most widely used type of digital imaging. The logistics of CR are very similar to that of conventional analog film-screen radiography. A conventional x-ray unit is used to make the exposure onto a photostimulable plate (PSP) that is housed in a cassette that is very similar in appearance to a conventional radiographic cassette.

After the x-ray exposure is made, cassette with the PSP is inserted into a plate reading unit which scans the PSP and creates a digital image in a format known as DICOM (the standard established for medical imaging). This digital image is simply a computer file made up of data in a binary code (0’s and 1’s). Once the digital image (computer file) is created it can be displayed on a computer monitor, stored on devices capable of recording large computer files, copied to a CD, and transmitted to another location via the internet.

The following are some of the advantages of CR imaging:

  • Utilize Existing Equipment: Most of the time your existing equipment that produces the x-ray radiation can be used as part of a computer based imaging system.
  • Image Quality: Computer based imaging can result in images with high resolution and can provide excellent image quality.
  • Post Processing: A digital imaging system has the ability to manipulate the image once displayed. Contrast and density of images can be adjusted; the physician can zoom in on or magnify images. Many other image manipulation tools are available.
  • Improved Efficiency: CR images generally take between 45 and 85 seconds to be scanned and converted to a digital image. Since a computer is used for routing, storage, retrieval, and viewing of images, there is a much more efficient workflow that can result in considerable savings.
  • Positioning Flexibility: Since CR utilizes imaging plates that are used in the same manner that conventional cassettes are used, CR’s enable the facility to use the plates in cassette trays, table top, cross table and for “portable” use.
  • CR System Cost: In general, CR systems are less expensive than the other general purpose digital x-ray technologies.

Before deciding on which type or model of digital x-ray system to purchase, you should discuss your options with a qualified x-ray dealer that offers a full range of digital systems. There are many advantages and disadvantages of various types of digital x-ray technology with respect to each other.

 

 

 

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