CR systems are considered indirect systems that convert
x-rays to stored light as an intermediate step. CR
systems use a cassette with a phosphor plate to store
the image and a reader/scanner to convert the stored
illuminated image into a digital image. CR systems
function like a conventional wet system with cassette
handling and processing steps.
The current cost range is $30,000.00 to $68,000.00
depending on the processing speed and volume of phosphor
plates that the unit can process automatically.
Advantages of CR (Computed Radiography):
No silver based film or
chemicals are required to process film. Reduced film
storage costs because images can be stored digitally.
- Computed radiography often requires fewer retakes due to
under- or over-exposure which results in lower overall
dose to the patient.
Image acquisition is much faster -
image previews can be available in less than 15 seconds.
By adjusting image brightness and/or contrast, a wide
range of thicknesses may be examined in one exposure,
unlike conventional film based radiography, which may
require a different exposure or multiple film speeds in
one exposure to cover wide thickness range in a
Images can be enhanced digitally to aid in
Images can be stored on disk or
transmitted for off-site review.
Ever growing technology
makes the CR more affordable than ever today. With
Chemicals, dark room storage and staff to organize them,
you could own a CR for the same monthly cost while being
environmentally conscious, depending upon the size of
the Radiographic Operation.
Manufacturers of CR:
There are many manufacturers that develop CR Systems
including but not limited to Allpro, AGFA, iCRco,
Carestream Health (Kodak), Fuji and Konica.