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DIRECT RADIOGRAPHY (DR) AND
COMPUTED RADIOGRAPHY (CR)

DR and CR are both radiographic techniques that produce a digital image of the subject that can be post-processed to optimize the image for viewing. The wide dynamic range allows greater flexibility than conventional film in many cases. The elimination of chemicals and film, as well as reduced exposure and image processing time makes CR or DR a wise choice for many applications.

Direct Radiography (DR) systems using digital detector arrays (DDAs) are a logical progression of the radiographic technique.  With typically even shorter exposure times than CR and practically real time results, DR is an excellent choice for many applications.  

Two of the biggest advantages of Digital Radiography:

  • Very short exposure times required to capture an image on the DDA, again saving time and exposure to radiation

  • The image processing is practically instant, allowing adjustments to be made with minimal impact

 

Computed Radiography (CR) uses photostimulable phosphor plates (PSPs) in place of film to capture the  image.  The exposed PSPs are then scanned and the captured data is converted into a digital image file.  The software allows for certain post-imaging processing to take place to optimize the image.

Two of the biggest advantages of Computed Radiography:

  • Digital images can be saved on an optical disc or other secure storage media eliminating the need to store boxes or envelopes of film that can degrade over time

  • Viewing software allows for measurement and other tools to improve image evaluation

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