CR Systems

Making the transition from analog to digital could bring several advantages to X-Ray imaging. These would include improvement in contrast and other aspects of image quality by means of image processing: radiological images could be compared more with those obtained from other imaging modalities, electronic distribution of images within hospitals could make remote access and archiving possible, highly qualified personnel could service remote or poorly populated regions from a central facility by means of 'teleradiology' and, radiologists could use computers more effectively to help with diagnosis.

Computed Radiography (CR) systems use equipment similar to conventional radiography except that in place of an X-Ray film, an imaging plate is used to create the digital image, which is then transferred to a computer.

X-Ray films are no longer taken to a darkroom or an automatic film processor to be developed in chemical tanks. With Computed Radiography, the imaging plate is run through a special laser scanner to read the image and transferred digitally to the computer to appear on the screen. The digital image can then be viewed and be contrasted or color-enhanced for better visibility.

With Computed Radiography, minor exposure faults can be corrected digitally, saving time and the danger of excessive radiation exposure to the patient.

Computed Radiography enables health workers to reproduce images on mediums other than film. Digital images can be documented on CDs, printed on high-quality paper or simply viewed on a computer monitor.

Radiology FAQ's

Q. How significant is the radiation in an X-Ray?
The average amount of exposure to an X-Ray is very low and is well within the acceptable amount recommended.

Q. What does one do if an X-Ray is required during pregnancy?
The X-Ray technician should be informed and he should cover the lower abdomen with a lead apron. In case one's pregnancy status is unknown, it is still a good idea to ask for protective cover.

Q. How long does a barium test take to perform?
An upper G.I. series takes 30 minutes. A full study takes 3-4 hours.

Q. In these days of hi-tech investigations, are X-Rays getting redundant?
No, X-rays are the most cost-effective means of diagnosis, particularly when diseases of chest, bones & joints are concerned.

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